Well I did manage to get it changed, however not that easily! I put the card in, no problem, started the computer up, somehow managed to loss my floppy disk drive under device drivers and had a system halt. I got really nervous at that point, restarted the computer which started normally but then detected nothing new at all. I managed to waste about 3 frustrating hours trying to solve it before I claimed defeat and called the computer man who asked me to bring it in.
Once I got to the shop I was out of there in about 20 minutes, I apparently orginally got a defect card which would not have worked for anyone. and for my troubles they put an extra card in for me so I no longer have a shortage of usb ports at all. I just need to find things to plug into them!
And now my problem is solved! Thanks guys.