Linkbucks and vBulletin integration

hello everybody
i m running a forum powered by vBulletin 3.7.1
i wish to incorpoate linkbucks with it. i want any link or any thumbnail posted which takes the user onto a different domain shoul be converted into linkbucks.
i tried linkbucks full page and plugged the script into my header but then after giving exclusion URLs too all my links are getting converted into linkbucks. i just want the other domain links to be converted.
please help

See original post by rajrana007