Looking for a wifi modem with a RS232 port

Hi All,
I am workin on a project and kinda new to the whole wifi topic, I need
a wifi modem with a RS232 port to connect it to a board(board includes
a camera and a microcontroller, it can be seen here
http://www.jrobot.net/Projects/AVRcam.html), I was trying to use the
USB Wireless adapters, based on zd1211 or zd1211b chips but i am not
sure if they have a PS232 port. does anyone have any suggestion on
what type of modem should i use, or if the zd1211 has any RS232 port.

Any help is appreciated