With a quick look at distrowatch.com, I found that Freespire is listed as "dormant". So, upgrading to a new distro might be the best bet.
But, I'm assuming you mean that you have a linksys card installed? If so, and it's one of the more common wired versions of that card, it should have had drivers for a long time. There is a version 2.0.8 version of freespire on their website which has a better shot of working than 1.0 since the 2.0.8 version is from 2007.
You said that the drivers are installed, try doing a modprobe (if possible) on the driver. Then do a dmesg to see if it caught anything.
But, as pixellany said, it's probably easier to upgrade to a more modern distro. I would recommend checking out www.distrowatch.com
to see what makes sense for your system.