This should help:
==Download SmitfraudFix (by S!Ri) from http://siri.urz.free.fr/Fix/SmitfraudFix.zip
Extract the content (a folder named SmitfraudFix) to your Desktop.
- Restart your computer in Safe Mode.
- Open the SmitfraudFix folder and double-click SmitfraudFix.cmd, select option #2 - Clean [type 2 and Enter]
You will be prompted: "Registry cleaning - Do you want to clean the registry?"; answer Y and Enter [which will remove the desktop background and clean registry keys associated with the infection].
The tool will next check if wininet.dll is infected- if it is you will be prompted to replace the file ; type Y and press "Enter".
It will also create a log named rapport.txt in the root of your drive, eg: Local Disk C:\
Restart in normal Windows.
[You may also have to restore your desktop background...
If so, go Start >run, type regedit and <enter>. Navigate to this key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
Please export that key: in the left pane highlight system with a lclick, go File, export... , save as bluewall with file type .txt. Close regedit and post that txt file.]

==Start hijackthis, select Scan Only, place checkmarks against all the entries listed below that still exist, and then press Fix Checked.

F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\mgmrwmrv.exe,
O2 - BHO: (no name) - {00000250-0320-4dd4-be4f-7566d2314352} - (no file)
O2 - BHO: (no name) - {13197ace-6851-45c3-a7ff-c281324d5489} - (no file)
O2 - BHO: (no name) - {15651c7c-e812-44a2-a9ac-b467a2233e7d} - (no file)
O2 - BHO: (no name) - {4e1075f4-eec4-4a86-add7-cd5f52858c31} - (no file)
O2 - BHO: (no name) - {4e7bd74f-2b8d-469e-92c6-ce7eb590a94d} - (no file)
O2 - BHO: (no name) - {5929cd6e-2062-44a4-b2c5-2c7e78fbab38} - (no file)
O2 - BHO: (no name) - {5dafd089-24b1-4c5e-bd42-8ca72550717b} - (no file)
O2 - BHO: (no name) - {5F6D7062-FAEE-4276-A2D7-F811FADCF0BD} - C:\Program Files\microsoft frontpage\qisafipyz777444.dll (file missing)
O2 - BHO: (no name) - {5fa6752a-c4a0-4222-88c2-928ae5ab4966} - (no file)
O2 - BHO: (no name) - {622cc208-b014-4fe0-801b-874a5e5e403a} - (no file)
O2 - BHO: (no name) - {8674aea0-9d3d-11d9-99dc-00600f9a01f1} - (no file)
O2 - BHO: (no name) - {92A912CB-531D-4578-B344-ABC5FDDDA076} - C:\Program Files\ComPlus Applications\hokevog555077.dll (file missing)
O2 - BHO: (no name) - {965a592f-8efa-4250-8630-7960230792f1} - (no file)
O2 - BHO: (no name) - {9c5b2f29-1f46-4639-a6b4-828942301d3e} - (no file)
O2 - BHO: (no name) - {cf021f40-3e14-23a5-cba2-717765728274} - (no file)
O2 - BHO: (no name) - {fc3a74e5-f281-4f10-ae1e-733078684f3c} - (no file)
O2 - BHO: (no name) - {ffff0001-0002-101a-a3c9-08002b2f49fb} - (no file)

Good. Please post C:\rapport.txt and a fresh hijackthis log with your comments.