What was the file you downloaded? The Linux file I found here
is in .tgz format, which is just a tarball. You can extract it with "tar xvf filename.tgz
". Extracting the files from said tarball will create a folder named eagle-usb and then the source code for the driver can be found in the sub-directory named eagle-usb-src. There's a file called readme in there that gives installation instructions.
Edit: I didn't see any .RPM files anywhere, but Mandriva is
an RPM distro isn't it?