[Lilux-help] LuxDSL querries

Hello people, this is my first posting... I'm trying to set up my LusDSL connection and need some assistance. I could probably ask P&T but the last time I called them asking what the IP adress of their mail server was my question was too complicated, so.. I have a ZyXel Prestige 600 series modem ISDN splitter ISDN line Suse 9.1 personal a couple of questions: Do I need the splitter, and what is it for? Are long connection cables a problem? Is the connection using the eth0 preferable? and why? Once properly wired it should configure using Yast out of the box (right?). But should it be configured using the network devices -> Modem or -> DSL ? Thanks for any pointers, ADSL is a bit murky in my mind... Dirk