Hello,
Unfortunately, as per the company rules,stpes for manual uninstall cannot be given over the forum. We request you to try the msi cleanup utility, if still need be please avail to phone support,which is a paid option.
http://support.microsoft.com/default.aspx?kbid=290301 .
NOTE : If we do not receive your reply within two business days, this post would be marked assumed answeredand would be moved toanswered questions pool.