the shell commands are:
modem_run -m -f/usr/share/speedtouch/mgmt.o (assuming that that is where you put your mgmt.o)
pppd call adsl
Now, before you do that, make sure the adsl file reads correctly because the vci vpi numbers keep disappearing. It's a Mandrake BUG!!!!
(8 and 35 for the USA, France, Belgium, Italy and Norway I think - 0 and 38 for UK and Ireland and a lot of other places)
When you have done your pppd call adsl wait a bit and then enter ifconfig to see if you're connected.
Now, sometimes you will be connected and STILL cannot resolve properly and f me I do not know why that should be.