I have FP 2003 and SPD 2007 available. Should I start using SPD to edit
existing WSS 2 sites so that I can learn it before we upgrade to WSS 3, or
hold off on using SPD until we have WSS 3?
Use FP2003... SPD07 uses .NET 2.0 Web parts, which are not supported
in .NET 1.1.