>>"i put my log an another forum and deleted what they told me to, it speeded it up a little bit, and i also defregged my computer a couple of days ago, what else could it be"<<
Was that the HJT board on this forum and did they give you the all clear?
There could be a number of reasons why your system is running slowly, but if the change was sudden then that points to some kind of infection. If the TSF techs gave you the all-clear, then fair enough.
First, check that your hardrive is not near to full capacity.
The next issue to explore is the introduction of any recent driver updates - roll back any that you know to be recent and see if that helps.
Also, go to Start>Run and type msconfig
and select diagnostic start-up - restart and see what happens. If there is a dramatic improvement, try disabling the start-up of programmes running in the background and re-introduce one at a time to see which one is affecting the system. Leave any you don't really need disabled.
Download Regseeker and run it in the auto clean mode and use your delete key to remove any debri from the registry:-
Follow that with a file check - with your XP CD in a drive go to Start>Run and type sfc /scannow
(there is an essential space after sfc) press your Enter key and allow the checker time to confirm and replace any damaged or missing files.
If things haven't improved and you are running Norton security, try removing it and replace it with AVG, MS Anti-spyware, Adaware SE and Spybot.
If none of the above brings about satisfactory performance, try a 'repair' install of windows - you will need to reinstall windows updates, but before you do, check to see if things have improved and note the effect of loading the XP updates.