Followed the recommended information. I installed bhblaster this failed to detect the hijacker. and allowed my homepage to contiue to be changed.
I had spybot installed and use it reguraly this had not detected the problem.
The Microsoft solution involves changes to the registry, I prefer that this is possibly the last road that I would go down when all else fails.
The problem has been solved, after more research I find that "thesten.com" is a trojan named "CoolWebSearch which uses the the Microsoft Java Virtual Machine (JVM). Apparently Microsoft JVM is no longer supportd by Microsoft and can be removed in favour of the more recent Sun Microsystems JVM