Website for a CMS product

Hi,

I recently bought and upgraded a CMS called TutorialControl. I integrated everything into vBulletin to replace the old site, which is still partially functional here.

The site's pages are vB threads and vBAdvanced CMPS pages.

I changed the top menu on vBulletin to hold links like the demo, the purchase page and the support forums instead of the calendar, etc. I also implemented the live help system on the right side of the page.

Do you think that the navigation could be easier, and if so, in what way? Does the PayPal verified logo fit in well with the rest of the page? What else could I add to make the script more appealing & easily accessible to visitors?

All suggestions are welcome and appreciated. Thanks