How to remove ';ahomepcsafety'; trojan?

My computer is infected with ahomepcsafety. It has changed my default webpage, and all these pop ups for fake spyware keep coming up. I tried to remove it, but it wont let me remove it. I tried all the sites on the computer to remove ahomepcsafety but it won't let me download anything. What should I do. HELP!!!!!!!!!!!

How to remove ''ahomepcsafety'' trojan?stinger

This is a Malware Removal guide for XP Home or XP Pro

http://tribulattifather.tripod.com

How to remove ''ahomepcsafety'' trojan?virus scanner

This website has manual removal instructions for that malware:

http://www.pcontech.com/ahomepcsafety.co...
1. Download and run firefox to protect your from future spyware attacks and pop ups which are coming in through internet explorer (Trojan downloaders, win32 ) .Then update your windows through firefox http://securitynewsfromthenet.blogspot.c...

2. Run the vundo and combo fix http://securitynewsfromthenet.blogspot.c...

3. Run the anti spyware remove programs spybot http://securitynewsfromthenet.blogspot.c... and superantispyware http://securitynewsfromthenet.blogspot.c... to get rid of the nasties

4. Run a free online virus scan to be sure you computer is virus and spyware free. http://securitynewsfromthenet.blogspot.c... download and run McAfee Avert Stinger Stinger is a stand-alone utility used to detect and remove specific viruses http://vil.nai.com/vil/stinger/stinger.h...