Failed Upgrade Step 6 - Install/Upgrade CMS

[FASEOFMARS]

i recently moved the contents of my forum folder to my community folder (it would not let me rename so i moved) everything is fine except for my cms.. when i try to click the edit button or add new article it gives a invalid link and just redirects to index.. its almost like it duplicates the link..

so i figured their was a problem with the product and went through all the steps of un-installing and re-installing.. untill i finally restored my entire directory only to find it the same stuff happening with the cms.. so i have decided to to run my previous upgrade again jus to make sure everything is in check.. i have gotten to step 6 and this is what its telling me.. their is no back option.. anybody any ideas?

"Step 6) Install/Upgrade CMS

Installing product file...

XML Error: Empty document at Line 1

Product was not installed, please contact vBulletin support for assistance."

Help would be greatly appreciated i have been at this all night and im running low on juice..

Regards,
FASEOFMARS

--------------- Added [DATE]1274368320[/DATE] at [TIME]1274368320[/TIME] ---------------

UPDATE: i have gotten past step 6 by reinstalling the product.xml file on the forum and reinstalling it on the directory.. i have completed the upgrade, my files seem fine.. i have received nothing in my email indicating this is a database error but i still get the same problems with the CMS page when i go to click on the create an article or what not.. hmmmmm...

could anybody tell me what this value in bold means? because i think i may of changed it...

www.myforum.com/community/content.php?r=54-T.D.M-TuESDAY-S-18th-May

see this is now what it shows since problem..

www.myforum.com/community/content.php?www.myforum/community=54-T.D.M-TuESDAY-S-18th-May

any idea?