Missing Partition?

[Azimov]

My comp died on me a few months ago and I've only just replaced it. I got one of those external drive box thingys (connects with USB) and put my old hard drive in it but I can't see a load of stuff I'm sure was on it originally. I can only assume that I'm not seeing a partitiion or 2. I forget how it was partitioned originally but I am positive there's a lot missing.
Is this likely to be the case... that you can't see partitions when you connect your old boot drive via USB, or is there some way you can access the "hidden" partitions, if that is the problem?

[ACtheTROLL]

you don't say if , or what flavour of windows

look in disc manager (right click my computer | manage | disc management)

and see what you can see (don't do anything!!)
try downloading
http://www.tucows.com/preview/293662

and see what it tells you.