Inamuddle1 - “... Anyway, when you read my CV, it was written years ago, says in proficient in Powerpoint, and Access, and I dont even know if I remember how to use them now...”
When you don't use software for a while you do get a little bit rusty. But since you could use them before, you'll pick them up very rapidly indeed. If I were you, I'd set myself a small challenge; fire up Powerpoint and make a presentation about yourself. It might seem a bit cheesy but it'll blow the dust off the old memory banks. As for AutoCAD, it's gone through quite a few generations but it is essentially the same piece of software – for instance, all the old typed keyboard commands are exactly the same as before.
If you haven't got Powerpoint (or Microsoft Office), you can always download 'Open Office' which is a free office suite that looks, feels and works pretty much like Microsoft's.
http://www.openoffice.org/
Good luck.