right cool
iexplore.exe DOES NOT reside in the system32 subdirectory, hence its JUST a virus and not a virus that has attached itself to your browser.
REBOOT the machine, and keep pressing F8 (after gone thru where lists drives) and choose (i think its summat like this)
Safe Mode - Command Prompt Only.
When booted, pick ur normal user (or leave if only one user) and it will give you a black screen with a command prompt
type the following (enter after every line)
CD \
CD WINDOWS
CD SYSTEM32
ERASE IEXPLORE.EXE
then reboot ur machine, and do another full system scan.
HTH