Cannot install anything

[ryman3333]

I cannot install anything including any antivirus software.  Any advice would be greatly appreciated.

List of running processes:
iexplore.exe
taskmgr.exe
iPodService.exe
firefox.exe
mDNSResponder.exe
AluSchedulerSvc.exe
AppleMobileDeviceService.exe
svchost.exe
iexplore.exe
wmpnetwork.exe
AcroRd32.exe
WMP54GSv1_1.exe
WLService.exe
alg.exe
svchost.exe
HPZipm12.exe
MDM.EXE
iexplore.exe
svchost.exe
svchost.exe
svchost.exe
svchost.exe
svchost.exe
ati2evxx.exe
lsass.exe
services.exe
winlogon.exe
csrss.exe
svchost.exe
smss.exe
wmpnscfg.exe
spoolsv.exe
symlcsvc.exe
CCSVCHST.EXE
ctfmon.exe
explorer.exe
realsched.exe
iTunesHelper.exe
hpwuSchd2.exe
System
System Idle Process

I am running Windows XP with SP2.
Thank You.

[Karnac]

You'll have to go here....

http://www.computerhope.com/forum/index.php/topic,46313.0.html

If you've lost your connection, download the programs to a USB stick on a good PC and transfer them to your PC.
If you have difficulty, you may have to run them in safe mode, tap F8 at start, .
If you have difficulty, you may have to rename the programs when you save them.
If you get stuck on a step, proceed to the next .

Post the logs for steps 3, 4 and 6.