if the speedtouch is the silver painted you must visit the following site
http://www.nemohackers.org/speedtouch.php
I'm using it with MDK 9.2.
Mdk9.2 lacks two files, I ve found somewere the correct setup :
/etc/sysconfig/network-scripts/net_cnx_up
containing
#!/bin/bash
/sbin/route del default
/usr/share/speedtouch/speedtouch.sh start
/etc/sysconfig/network-scripts/net_cnx_down
containing:
#!/bin/bash
/usr/share/speedtouch/speedtouch.sh stop
remember to make the two files executable
hopes this will help you