Similar project to http://www.scriptlance.com/projects/1251410456.shtml

I need a modificated version of this script: http://www.vbulletin.org/forum/showthread.php?t=178714

Cache support is very important.

On showthread: links to similar threads/tags based upon search words from Google.

On main page: as above, but links to popular threads/tags (rotating - for example, once an hour)

On tag pages: Add short description of threads (first x characters)

Showthread (tags): Automatically add new tags to thread based upon popular search words from google (option to limit these tags).

More or less, I want something similar what can be found at http://www.forum.wiaderko.com/

If there are any questions - do not hesitate to ask.