Fire Red Trading Communication Error

[xemaa8]

Don't use 0.5.0. Use 0.5.2 or 0.6.0.

I've tried both, but it doesn't seem to work for me  Any suggestions? 6.0 won't even load the second game for me. Instead I just get a white screen. 5.2 will load both games but it gives me the communication problem after I enter the trade room.