Can I ask one really dumb question? How can I check where the other machines on the network (win2k machines) have been cracked?
This isn't the place to ask that - the skillset on this list is Linux/UNIX, not, for the most part, Windows. You'll need to find a decent Windows list or newsgroup, or failing that, hand over a pile of money to an 'expert'. Sounds like another lesson in what you can expect for free from Linux which you have to pay for under Windows. :o) If I were you I'd be inclined to reformat and reinstall everything (all at once) and put it down to experience. Even if you haven't been cracked, the fact you've left your network exposed means you can't trust it anymore. Harsh lesson - you have my sincere sympathy. -- "...our desktop is falling behind stability-wise and feature wise to KDE ...when I went to Mexico in December to the facility where we launched gnome, they had all switched to KDE3." - Miguel de Icaza, March 2003