The 32bit is an installer for the program, but should install the 64bit plugin. The AnalogLab is installed to the Program Files(x86) folder...
I use Studio One 3 Pro and it does work on my 64bit Win 8 OS,,,
Look in your C:\Program Files\VST Folder or where ever Abelton9 looks for Instrument plugins.
It should be installed,,, If so, check with how ableton handles resetting or placing the path locations for ableton to look in a folder for plugins... Whether instrument or Effects...
I am not familiar with Ableton...
Hopefully Arturia will rewrite Analoglab for 64bit benefits soon with a 64bit install,,,