Accelerated Design supplies the content for PartsQuest. You can get PADSLogic Symbols from them.
The symbols are output in xDX Designer format, The output does vary based on the selected flow: Designer, xDX Designer for PADS, and xDX Designer for Xpedition.
PADS Logic is not supported at this time.
Mentor sales guys are always quick to say that PADS Logic is not being replaced, abandoned, forgotten, etc.
But once again another tool that doesn't work with PADS Logic.