masquerading and Edimax Ew-7205APL AP

I have two laptops thinkpad and dell latitude running knoppix 3.2.
These work just fine with a borrowed orinoco 802.11b 11MBs card with
the access point of a local internet cafe.
And they work just fine behind a RH 8.0 iptables monmotha firewall to
do the 196.168.1.x /24 maqueraded connection to the Internet via
ethernet on the motherboards.
And they connect just fine by radio to the EDIMAX Ew-7205APL Wireless
Acccess Point.
Can connect to the management of the AP with
http://192.168.2.1(default) and
change the AP IP config (netmask is fixed tho at 24 bits) if I want.
And also enable the DHCP server.
Cannot connect to the Internet via wireless cos there is no connection
between 192.168.2.x and 192.168.1.x.
Is the solution to extend the the /24 maquerade to /22 and have
192.168.1.x and 192.168.2.x range masqueraded on the firewall?
Maybe I should forget the idea of keeping the clients ethernet access
to the Internet, just use the wireless?

TIA

wayne