The second two fixes are the fixes I posted earlier that fix tab artifacts on users member pages and that you tried to use to
fix your footer issue, the first fix is due to an extra <div> tag in that template. The solution provided closes the <div> the solution I'd use is to delete it.
You accidentally deleted the start of the html comment in the awards_awardusers_bit template. Open that template find the line and add
<! to the start of it so the start read
<!-- (notice no spaces). This will make it a proper html comment.
You only need the third one and from in it the contents of the upload folder will go into your forum main. Then load the xml through admincp plugins area.
I'd recommend upgrading to the 3.8 version before the vb4 version. It says to backup the awards tables then remove then re-install, but I found I didn't have to do that and in fact it caused troubles when I tried. I'd recommend backing up the awards tables then upgrading either to the 3.8 version (and then the vb4 version) or just straight to the vb4 version.
You'll need to post the entire template that you've modified as something else that you changed may be causing the problem.