I would second the recomendation to upgrade to OS2008. Not for the other features (and anoyances), but because since software development is going in that direction, you'll have to upgrade eventually. And better to start off upgraded instead of getting a bunch of stuff working in OS2007, then having to rework it all for OS2008. And anything that isn't working in 2008 yet will eventually (but on the converse, it is quiet likely that things will come out for 2008 that will never work in 2007).
Hopefully future OS upgrades won't break backward compatibility so much.