Hotmail Popper doesn't really have anything to do with push, does it?
There might be options... some come to mind:
1) Use something like MacFreePOPs or whatever to get Hotmail into POP (or the Popper app you use now) and then have that computer run always on, with ports accessible, and configure it as your POP server.
2) Try something like Izymail. It basically does the same thing from a web server. But you have to provide them all your passwords, so make sure you trust them....