Comment 124 for bug 541620

There is indeed no need to upgrade to Ubuntu 10.10 just for WLAN drivers. All newer drivers are also available to Ubuntu 10.04.

As mentioned in comment 109 there are linux-backports-modules-wireless packages. The 2.6.35 backports package will give you the wireless drivers that come with the 2.6.35 kernel, which is the kernel that Ubuntu 10.10 shipped with. Those backports packages become available some time after the corresponding kernels become stable. I don't know whether backports of 2.6.37 are out yet. Try the newest one available.

If the newest wireless backports package does not work for you then you can try the Natty backport kernel, currently from 2011-01-27. That will give you a pretty current development (2.6.38) kernel.

Let us know how it goes.