Unable to use Wireless adapter in Debian

[waterhead]

I believe that the Linux open source driver rtl8187 covers this wireless too.
rtl8187 - Linux Wireless

Although it does not specifically list it as supported, I think that it is. Here is a thread about it in the Sourceforge forum.
SourceForge.net: Realtek Linux wireless driver: rtl-wifi

I would use the latest driver version available. That can usually be found by installing the compat-wireless driver package, found here:
Download - Linux Wireless

There is a web site for the driver. They say that you can only get the driver from their SVN repository.
Main Page - Realtek Linux wireless driver

[biniman]

Hmmm! I followed the SorceForge.net link and here is the error that resulted:

pioneer:/belkin-driver/rtl8187_linux_26.1010.0622.2006# make
rm -f ieee80211/Module.symvers 2>/dev/null
rm -f ieee80211/Modules.symvers 2>/dev/null
make -C ieee80211 all
make[1]: Entering directory `/belkin-driver/rtl8187_linux_26.1010.0622.2006/ieee80211'
make -C /lib/modules/2.6.18-6-686/build M=/belkin-driver/rtl8187_linux_26.1010.0622.2006/ieee80211 modules
make: Entering an unknown directory
make: *** /lib/modules/2.6.18-6-686/build: No such file or directory. Stop.
make: Leaving an unknown directory
make[1]: *** [modules] Error 2
make[1]: Leaving directory `/belkin-driver/rtl8187_linux_26.1010.0622.2006/ieee80211'
make: *** [all] Error 2

The link suggests that such errors may be due to inconsistent kernel header. To this end,
apt-get install linux-headers gave the following error message:

Package linux-headers has no installation candidate

Again, I have hit the brickwall.

[MikeTbob]

Man, this booger just keeps getting tougher, I know next to nothing about Debian so my help here is limited. I know in Fedora, they also use a package called kernel-devel in addition to kernel-headers, so maybe you should try searching for something along those lines using apt.

[waterhead]

Well, I don''t know how old the version of Debian that you're using is. But with a kernel version of 2.6.18-6-68, I would guess that it is rather old. You may nod be able to update it anymore.

You could try to specify the version:

apt-get install linux-headers-`uname -r`

You may want to first try and update the kernel. The driver that you want is already in kernels 2.6.25 and newer. You may not find a kernel that new for an older distro.