Everything Is White

I bought VBSeo yesterday, and ive installed it today. After i imported the .xml file via ADMINCP, suddeny everything that showed up was white pages. I cant access the forum, i cant acces the admincp, nothing. We have a huge board that is OFFLINE NOW. Please fix my problem

Please remove the vBSEO lines from your .htaccess, and open a support ticket here:
http://www.vbseo.com/support/

Did that as well. All i get are blank pages.................... Did your .xml file modifed any of my php files?

Someone please help me, its the middle of the day here and we dont have the forums available. Right after i imported the xml file, everything went blank. We've removed the .htacces lines from VBSEO, removed Zend, restarted apache, still nothing

update: replied via support system, forum is running back again.