Is It Possible To Retrieve Sections Of My Site

I have been having difficulties in getting the "Join" button on my site to function again, but to no avail. Am facing the option of starting all over again with a new installation. But I have one question, is there a way to salvage some section of my site - like members profile, blog and photos? It will hurt a lot if I loose them (from SE ranking to the pain of re-doing it all over).

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Here is the post for the challenge with the site http://www.boonex.com/unity/forums/topic/Help-My-Join-Button-Is-Not-Working.htm

Download WinMerge

www.winmerge.org.  This program lets you compare files to see what has changed.  Then download new set of files and compare them with the ones you have installed and live.  It may show you the changes on the join page, join button, etc that are causing the problem.

I would do that first.