Wireless Network

I have two wireless networks and two laptops. One wireless network is a
Linksys 2.4GHZ (54G)
Wireless G. The other is a SMC EZ Connect 802.11a. Both are working great.

My problems is: I want to install software on both lap tops for both
the wireless card adapters. But
when trying to install the linksys software on the lap top that has the
SMC installed, I get a message,
"There is a problem installing this hardware (Wireless G). An error
occurred during
this installation of the device. The system cannot find thie file
specified.

And vice versa.

Is it possible to have two systems installed on one lap top.

Thanks in advance for your helpd.