[Newbe]: Install Additional Software on the Z

Hi there

I've recently bought a Zaurus SL-5000, but I'm still unable to install
3rd Party Applications on it... How can I install those Z-Packages
on my Zaurus ? (Btw - I'm using MacOS X 10.2.6) Does there exists
a Step-by-Step Guide ?
I failed several times using the Network-Installation, some Packages 
showed
up in the Network-Installation view, but I was unable to get these 
Packages
installed on the Z... maybe, I'm too stupid for this PDA ;-)

Thanks in advance
- Lukas Westermann

PS: Please, I really *need* some input, because the Z is such a lovely 
tool =)