Live 8.0.8 (and newer) has passed all our internal Windows 7 testing routines and there are currently no known problems.
All 32-bit versions of Vista are supported. 64-bit versions of Vista may work to an extent, but Ableton does not currently support these versions.
The VST folder under MacOSX is located in the following folder: Library/Audio/Plug-Ins/VST. You place your VST Plug-ins in this directory.
Please be sure that the plug-in is actually a VST effect plug-in. If you are using MacOSX and an Intel-Mac, please be sure that your VST is compatible with your system.
As Steinberg states, only VST 2.4 plugins are supported on Intel Mac computers. Please contact the plug-in developers for a VST 2.4 version of their plug-ins in order to use them on an Intel Mac.
There should be no differences in Live's performance between any of the 32-bit versions of Windows Vista.
There is not a special Live installer for Windows Vista. As of Live 6.0.9, the standard Windows installer will install Live on either Windows XP or Windows Vista.
Yes. All versions of Live / Live LE as of 6.0.9 are compatible with Windows Vista.
Yes you can, with the Live/Suite 8.2 Trial, as long as you have the hardware needed to run Serato Scratch Live.
As long as you have the hardware needed to run Serato Scratch Live, you can try The Bridge using the Trial version of Live / Suite 8.2 or above.