Ok I solved all my problems. Just a few notes:
1) Make sure your user id and password is correct. It sound simple but if you cant login the ppp0 will not become available.
2) My modem version is 2 and I installed the speedtouch using the sme-speedtouch-0.0.1-05.noarch.rpm. I don't know which version it used but it didn't work for me.
3) Compiled modem_run, ppoa2, ppoa3 from the speedtouch-1.3.tar.gz but the modem_run and pppoa3 didn't copied to the /usr/local/bin directory because the files was in use. I had to stop the usb-uhci copy the files and restart the module again.
4) I don't know if it is suppose to work but if my modem is not connected when I start the server and I then plug the modem in, the system doesn't bring the modem up if I do the "pppd call adsl updetach" it just gives me a series of error messages.
5) if the software is installed correctly the modem start during the bootup process you don't have to enter any commands.
I think I made a few stupid mistakes during the installation but maybe this helps someone else in the future.