To use the ifmember command, you can either copy it to the local pc OR you can copy it to a share on a server. Then, have everyone map to x: drive (whatever letter) to the server share and use it in your script. Like this:
<>
net use m: \\w2k3fs01\login
:map user's network share
m:\ifmember kyfd01\scanners
if %errorlevel% EQU 1 goto scanned.data.directory.mapping
net use S: \\w2k3fs01\users\%username%
That will use the m: drive throughout the script for ifmember. Post any questions. Good luck.