help PLEASE! at the end of my tether...

i don't know alot about computers but ours got a virus (i couldnt tell you what it is as i can no longer get into the system)
but the long and short of it is nothing was loading on the desktop, couldnt get any icons so booted into safe mode to have a look at it.
since logging out i cant get back into it. all i get in safe mode once i've gone into the admin section is a black screen with safe mode in 4 corners. i cant get the task manager open, i cant even log off as its asking for an administrators password and nobody knows what it is??
i was going to a system repair but we werent provided with a disc and dont know anybody that has one...
i dont know much about the actual computer as i use my laptop, but i think its windows xp, it says on safemode: build 2600.xpsp1.020828-1920 service pack 1
i dont know if that means anything?
could anybody PLEASE help me? it's not even my computer but i'm being made responsible and it's causing hellish arguments in my house. i'm about to burn the thing!!!!

thankyou very much

 

Hi and welcome to MG's..
Sorry to hear about your problem.
Please start a new thread in the Malware Forum

The experts in there will be able to advise you, on your best course of action.

Good luck.

 

Hi louise.
I should of added, please be patient while you wait for a reply to your malware post.
The experts in there are realy busy at the minute, but they will answer your post