vb.org Archive - Downgrade From vBulletin 4.x To vBulletin 3.x

Hi ,
One of the topics that most of webmasters talking about that is : How to downgrade from vBulletin 4.x.x to vBulletin 3.7 or 3.8 .
You can downgrade your vbulletin from 4.x to 3.x very very easy ! Without losing attachments , thanks , passwords .
You need IMPEX ( One of the vBulletin scripts like an addon ) to Do this work .
How to do this :
First of all you must get a backup ( export ) from attach and post_thanks table from your phpmyadmin ( in .sql format )
1. Get full backup from your vbulletin 4.x database .
2. Go to members.vbulletin.com and download IMPEX Script .
3. Make a new database and a new place for your new vbulletin ( 3.8) .
4. Install vbulletin 3.x ( 3.8.7 for example ) for your new database .
5. Extract the impex script and upload impex files ( in upload folder ) to your 3.8 forum root .
Now you have 2 databases . We call 4.x database old and 3.x database new .
6. You must config impex .
7. Go to impex folder in 3.x forum and rename ImpExConfig.php.new to ImpExConfig.php
After rename , Open and edit it :

Code:

####

#

# TARGET - The target is the vBulletin database (where the  data is going to)

#

####



$impexconfig['target']['server']                = 'localhost';

$impexconfig['target']['user']                        = 'username';

$impexconfig['target']['password']                = 'password';

$impexconfig['target']['database']                = 'vbulletin_forum';

$impexconfig['target']['tableprefix']        = '';



# If the system that is being imported from uses a database,

# enter the details for it here and set 'sourceexists' to true.

# If the source data is NOT stored in a database, set 'sourceexists' to false



$impexconfig['sourceexists']                        = true;



####

#

# SOURCE - The source is the old forum database (where the  data is coming from)

#

####



# mysql / mssql

$impexconfig['source']['databasetype']        = 'mysql';  // mysql OR mssql

$impexconfig['source']['server']                = 'localhost';

$impexconfig['source']['user']                        = 'username';

$impexconfig['source']['password']                = 'password';

$impexconfig['source']['database']                = 'source';

$impexconfig['source']['tableprefix']   = '';

You must set 3.x database informations in TARGET
And set 4.x database informations in SOURCE
8. Go to vbulletin 3 admincp --> Login --> You must have a new tab "Import"
9. Click on Import tab then you will see import page.
Select system : Choose 3.7.x
Select version and product : Choose vBulletin 3.7 and 3.8
Start all of the modules .
After you do this work you must go to update counters and update all of counters.
After all of this works you must import post_thanks and attach table . ( then optimize tables)
Thank you & Be successful . :)

X vBulletin 3.8.12 by vBS Debug Information
Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)bbcode_code_printable (1)bbcode_quote_printable (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)pagenav (1)pagenav_curpage (2)pagenav_pagelink (1)post_thanks_navbar_search (1)printthread (10)printthreadbit (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit showthread	Included Files: ./printthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/class_bbcode_alt.php ./includes/class_bbcode.php ./includes/functions_bigthree.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete printthread_start pagenav_page pagenav_complete bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
Messages:

X vBulletin 3.8.12 by vBS Debug Information

Page Generation 0.01496 seconds
Memory Usage 1,736KB
Queries Executed 10 (?)

More Information

Template Usage:

(1)ad_footer_end
(1)ad_footer_start
(1)ad_header_end
(1)ad_header_logo
(1)ad_navbar_below
(1)bbcode_code_printable
(1)bbcode_quote_printable
(1)footer
(1)gobutton
(1)header
(1)headinclude
(6)option
(1)pagenav
(1)pagenav_curpage
(2)pagenav_pagelink
(1)post_thanks_navbar_search
(1)printthread
(10)printthreadbit
(1)spacer_close
(1)spacer_open

Phrase Groups Available:

global
postbit
showthread

Included Files:

./printthread.php
./global.php
./includes/init.php
./includes/class_core.php
./includes/config.php
./includes/functions.php
./includes/class_hook.php
./includes/modsystem_functions.php
./includes/class_bbcode_alt.php
./includes/class_bbcode.php
./includes/functions_bigthree.php

Hooks Called:

init_startup
init_startup_session_setup_start
init_startup_session_setup_complete
cache_permissions
fetch_threadinfo_query
fetch_threadinfo
fetch_foruminfo
style_fetch
cache_templates
global_start
parse_templates
global_setup_complete
printthread_start
pagenav_page
pagenav_complete
bbcode_fetch_tags
bbcode_create
bbcode_parse_start
bbcode_parse_complete_precache
bbcode_parse_complete
printthread_post
printthread_complete

Messages:

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.01496 seconds Memory Usage 1,736KB Queries Executed 10 (?)
More Information
Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)bbcode_code_printable (1)bbcode_quote_printable (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)pagenav (1)pagenav_curpage (2)pagenav_pagelink (1)post_thanks_navbar_search (1)printthread (10)printthreadbit (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit showthread	Included Files: ./printthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/class_bbcode_alt.php ./includes/class_bbcode.php ./includes/functions_bigthree.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete printthread_start pagenav_page pagenav_complete bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
Messages: