Get the patches to SX so your running 1.03.
I also have 32/VST and it's a great program, but imho SX is easier to use, more powerful with easy navigation and a better audio engine. PLus it's new and things are only going to get better. If your trying to decide which one to get I would highly recommend SX.
If your using super complex MIDI, then depending on what your doing you may want to still use VST. I use MIDI on SX and I havn't had any trouble yet, but I have read a few complaints from people doing complex MIDI stuff.