For those interested in setting aliases to run this script from xterm without doing tons of typing, in my case I had to perform a 'chmod' on the vpnc file in /opt/maemo/usr/sbin/ before my aliases would work.

cd /opt/maemo/usr/sbin/

chmod +x vpnc

This should let you run your alias directly from the $ prompt.

But i'm sure there are better ways to do this...