If you email Realtek, they will email you a newer version of that driver. I haven't had access to the computer that I'm trying to fix for a week or so, but I got the driver from Kidman, and they are usually pretty fast on the response time.
If you search the forum for "realtek 8192e" you should find a couple of threads where I've been posting my long-standing struggle with this Realtek card- 64-bit can be a real pain!
I couldn't get the first 1 or 2 versions of that sourcecode tarball to work under 64-bit, but it sounds like this new file "rtl8192e_linux_2.6.0013.0127.2010.tar.gz" is the "good stuff" from what I've read here. I've got a copy on my hard disk, but Realtek doesn't have a direct download link that I'm aware of (email only).
Realtek may have a newer version than that by now, too.