Ruger5 0 Newbie Poster

Hi there, I am so confused - it took me 7 minutes to figure out how to post a question- I have a very low understanding of computers. I had the configfree program removed from my Toshiba Notebook, Satellite A100-SK4 PSAA8C-SK400E, Windows XP (about 5 yrs old) and now I have no sound. Toshiba site said this happens sometimes but gave no fix for it.
I have six yellow exclamation marks on my device driver sound area and I have tried to download the sound device from the Toshiba site but it didn't fix all.(originally there were 17 flags) There is still no sound and I don't know what to do? I tried the going to the Run, sound.msc and the windows audio is on started and automatic. Anything else I can do, without buying a new sound card? The stuff is in my computer I just cant get it to work??