You may have to point the daws to the vst locations depending on where you have them installed
Using custom/extra folder
You could try to scan first and see if they can find it ableton should scan on start up but you can manually scan in file prefs
FL details are here
http://www.image-line.com/support/FLHelp/html/basics_externalplugins.htmAbleton you need to goto preferences file/folder tab
There is a button for rescan
If it still doesnt detect it below that button is another button to turn on VST plugin custom folder
Click that and below is a button to browse
Point it to the analog lab location
It will be Analog Lab.dll not an exe
You need to point to the correct .dll architechture 32bit/64bit depending on what daw version you have installed