You just need a phono (from a record player) to a mini jack (the Line-In on the back of the PC)
You need some sort of software that can record...
You will have to play the Vinyl real time (so means it will take a long time, and you have to sit there listening to them all too
When you have recorded one track (or a full side) you have to save it as MP3 or whatever format you want... If you recorded a full side, you will have to split it to seperate tracks..
If you have the equipment, i have the software and would be happy to bring it up and teach you how to do it.. 20 minutes and you'll be done