WPA & WPA2 Compatibilty

I am planning on purchasing a wireless bridge for my PC to use in combination with a wireless router. The router is an Apple Airport N router, and we have it protected with WPA2-Personal security. I currently have been having trouble with my wireless adapter, and have come to realize it only supports WPA. Now I am able to connect to the internet fine for the most part, but receive frequent hiccups in connections, especially when playing games. My question is, if I purchase a 802.11g bridge that only supports WPA, will there be problems when connecting to the WPA2 network? I believe my main problem at the moment is 64-bit driver support, so I am using the bridge to eliminate driver issues, but I need to know if I need a WPA2 bridge, or if a WPA would work fine.