Depending on which ones you have, there is a very good chance that there is an updated version of the ones you are using..
A huge plus is now they are mostly plugin type mods. Very little template modifications. Of course that varies with the hack and author of said hack..
If you know how to back up your database and your root dir via cpanel, the worse case scenario would be to just import both the database and root dir and everything will be exactly as it was before you started.
I recommend shutting down the forum first. Dont want anyone posting, etc during a major upgrade..
The first time is the toughest on your nerves. It really is not as tough as it may sound to you.
3.6.5 - 3.7.4 is not that huge of a upgrade.. Should be very straight forward.
the hacks should be plugins unless they are simply template modifications..
After the upgrade, just be sure NOT TO REVERT THE TEMPLATES in the admincp or you will lose all of them..
What is your site URL? Maybe I can poke around and see what hacks you are running and give you better in site to what is needed?
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