If WineBottler doesn't support 64 bit, it won't work because TMP doesn't support 32 bit.
32 Bit support:
This will not happen, 32 bit accounts for less than 8% of the Steam userbase, and maintaining a 3rd platform that is being superseded just doesn't make sense. Instead of requesting this or donating for us to support it, put that money towards a new 64 bit capable computer (though a lot of systems sold after 2005 are 64 bit capable, you just need to switch to a 64 bit OS).
Found here:
Anyway I see someone get it worked with Boot Camp