vb.org Archive - Upgrade issue

I have VB pub suite 4.1.7 patch 2 and we know that new upgrade version is 4.1.9

I have few qs...plz help

1.Is that advisable to upgrade or shall i be on 4.1.7 only? If upgrade needed then why is so important?

2. I have 2 custom styles and offcousre have Default style...My question is if i upgrade to 4.1.9 then my custom style settings will disappear? Or they will retain as it is? I cannot change all settings again bcz am a doctor and nontechne..i worry if i go wrong some where

3. For persons like me whether Vbulletin upgrade at least once FREE of cost...I have paid HG some 60$ while installing and now HG is not upgrading free and again they are demanding money that too not guaranteeing errors during upgrade

4.Is there any clear step-step explanations video of VB upgrading...can anyone do that for the sake of others...

5. Can anyone show me a VB supported website which looks attractive so that i can make changes according to that( I mean mimic with that website admin permission)...I want stylish forum as well simple at the same time( professional in single word)

sorry for asking so many qs at a time:)

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X vBulletin 3.8.12 by vBS Debug Information
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Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_navbar_search (1)printthread (1)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 bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
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