[help] Keyboard \ mouse don't work no matter what I do

Deal is, I got a 2 year old computer from a friend who was going to throw it away anyway: specs:

2.4 ghz pentium 4

256 ddr ram

80 gb hd

1 dvd drive

1 cd drive

1 floppy drive

1 digital camera media reader thing installed in one of the drives places.

1 power cable

no graphics card

no moniter

no keyboard / mouse

I brought it home and set it up with my crt moniter from downstairs. The computer loads up fine, and it takes me all the way to a login screen (win xp) where I have to type in the password to proceed. Yesterday I was able to hook up my mouse and keyboard but only the keyboard worked. I was able to log in and proceed to the desktop, but I couldn't do anything without a mouse. I turned the comp off and went to sleep happy. Today I woke up, went to school, came back and attempted to login with no avail. I tried keyboard only, mouse only, ps/2 mouses and usb mouses (yesterday none of my usb anything would turn on, only the ps/2 keyboard).

I turn on the computer and get 1 beep if the ps/2 mouse is plugged in, 2 if both the keyboard and mouse are plugged in. As soon as it beeps the num lock, caps lock, and scrolllock lights blink, and won't stop blinking on the keyboard, the mouse doesn't work period.

I tried reinstalling windows, but it won't boot up the cd. I can't go into the bios because the keyboard doesn't work.

Any ideas on why the keyboard and mouse won't turn on? ANY help (don't care what kind) would be appreciated. I feel like pulling out all of my hair.

Thanks

//Flarex

#250809