What to do now?

Could you describe in plant english, what is the problem?
Please download avz in my signature, disable your antivirus and disconnect from internet:
execute this script in avz ([url]http://virusinfo.info/showthread.php?t=9207[/url] ):
[code]

begin
SearchRootkit(true, true);
SetAVZGuardStatus(True);
QuarantineFile('C:\WINDOWS\system32\ntsim.sys','');
QuarantineFile('C:\WINDOWS\system32\drivers\ffpjin.sys','');
QuarantineFile('e:\dental e-books\programs\oral midicine (( case & answer ))\oral midicine (( case & answer )).exe','');
BC_ImportAll
BC_Activate;
RebootWindows(true);
end.
[/code]
Your system will reboot. This make just a copy of your files, no modification to your system.

Upload all quarantined files according to Appendix #3 of Rules: [url]http://virusinfo.info/showthread.php?t=9184[/url] , using red link above.