When I turn on my computer and get to my login screen when I can choose what user I want to login as my computer won't recognize my wireless mouse/wired keyboard. I know they are both working because when I move my mouse the receiver blinks so I know that it is getting the signal and my keyboard is lighting up. So some help on this issue would be nice,thanks

Sound like a driver problem. Though the light lites up, the pc's drivers is not recognize the command from the wireless. Have you installed anything recently? Have yo tried a mouse or keyboard that is not wireless to see if that works? Did the wireless stuff some with an installation disk?

You may want to start comp. with old keyboard and mouse,uninstall your wireless software and drivers and then reinstall them like you did when you first got them

When the computer boots are you able to use the keyboard and get into the BIOS at all? Also try hitting F8 to see if you can get the Windows startup menu. (Assuming you're using Windows)
At that point the computer has not loaded any drivers so if it works there and not in Windows you have a conflicting driver loaded in Windows.
If you can't get into the BIOS try a different USB port.