I have problem with many printers but they are few years the HP LaserJet 5500.

You have to connect via the servers, the servers are restricted I can't change the drivers on there. So I tried it locally but still cannot print to the HP LaserJet 5550. I have plenty printers to choose from though including a InkJet - the Photocopiers seems to work without issue there Kyocera's they did at first, but my colleague must have got the new driver and uploaded the server..

I put the 64 bit on a first and was told to downgrade incase of compatibility issues we have a lot of plug in applications and I didn't realise that files themselves that are generated with a 64 bit aren't compatible.

Yeh 64bit applications aren't really a must, as long as the 32bit works with xp mode on 64 Bit. I have a few applications that won't run on x64. These are bespoke applications so it will take them a while to play catch up.