Even if it doesnt work, there is still a chance that the data can be recovered from it.

However, data recovery services are expensive. I would take admin's advice in the first instance - all you need is someone who is not too scared to take the cover off their PC (and yours) and install your hard drive on their computer. Its not that difficult (google might be able to help), but it can be a little intimidating. If you want to try, there are two plugs, a skinny one on the end of a grey cable and a thicker one on the end of a (usually) black cable. One is for data and the other is for power. Do all this with the wall power off.

There is a new PC repair shop/internet cafe on Dartmouth Rd on the opposite side to the old post office before question bar that might be able to help.