Need Program written for amatuer

Evening /prog/ I have a task for you. I'm in highschool and know nothing of real world programming. Know only Visual Basic, Pascal and Actionscript.

I've been hired by the school to make a swipe card system and need to make the program to run it.

Currently have:
Card scanners that work.
Cards to scan
2 x Touch screen computers

I need to somehow be able for them to scan there card and be signed in at the school, but i also need them to be able to sign out.

Having the information in access would create brownie points for the teacher. I currently have a list of names and the barcode number that corresponds to them.

Can you help?

I'm not actually asking for code, more like, what to do. If you wonderful people can tell me WHAT to do, I can code away like a grunt in no time.