I don't use Photoshop, I use GIMP, so I can't be sure, but I think I've read before about it not being supported by PS. Could be wrong.
I like the sorting in VNX too, if I'm shooting cars all day I can batch different groups of photos of each car together and after adjusting them all I can export the lot into one folder in one hit, so I can have a folder for each car.
In other news, I'm stepping up a bit tripod wise with my first fluid head. I've not gone too expensive, as I've managed to find a chinese knockoff with reviews that pitch the quality of the head against much more expensive Manfrottos etc. Plus it's taller than my old tripod so no more stooping down to take shots.