I downloaded the Wurlitzer V demo, then I did the update, and I too have the "crackling" issue with sustain pedal. I thought it was my controller, but I've tried it on other VST instruments and no problems there. I really, really wanted to buy that 10 pack of instruments, but I see others are having the same problem that I am, and with other VSTs in the package. Hope they fix this soon.
2/1/13: I have purchased the V Collection, and I wanted to share how it's working. When I open the Wurly as a stand-alone, it is accessing the Windows Audio as a driver. I still get the interference with the sustain and notes triggered at the same time; the crackling issue. BUT, when I open it in Mixcraft Pro (my studio program) it accesses the Wave RT driver, and there is NO sustain issue! Now...how can I access that driver when I use the Wurly in the stand-alone mode. Wave RT does not appear as on option in the setup menu of the stand-alone mode. Hope this helps some others out there.