in the "add/remove Software" application go into install packages via network. there add a new server and in the url space type:
http://cacko.biz/cacko/feedthen go out of the package servers configuration tab and click on upgrade... after some while you will get a list of a lot of applications for the zaurus (when you are connected to the internet).
it is very nice to install it that way because it is really fast and easy... also there are small descriptions for the applications when you double-click them.
EDIT: for the wlan: you should just get the wlan option in the network configuration app... then you normally should be able to connect (after configuring... but also auto-config runs nice).
ANOTHER EDIT: for playing movies use kino2... just read everything here how you can install it on your zaurus and how to compress movies so that they run nice on the zaurus .... just look here:
http://home.earthlink.net/~cresho/videorouter.htmOH YES... AND ANOTHER EDIT (hopefully the last): when i tried installing kino2 (described on the page i gave you) after installing the first 2 files the third one (kino2 itself) didnt want to install... it said that it depends on mplayer-w100 (but anyway i installed mplayer for the cXXXX like descibed on the site). if the installations stops now because you have to install mplayer-w100 and then kino2 again, it will not work properly...
so what you have to do:
INSTALL mplayer-w100 FIRST (if you have not already done this)!!
THEN EXIT THE APPLICATION INSTALLATION PROGRAM!
START IT AGAIN...
NOW INSTALL THE FILES DESCRIBED ON THE SITE I GAVE YOU...
REBOOT!
this is very important else it maybe will not work (as it didnt worked for me... and it was a bit painfull to find why it didnt work properly... and also it stole some of my time).
if it doesnt work properly (maybe if kino2 starts but the movies dont load or whatever) you have to uninstall all of this 3 files described on the site ( bvdd_0[1].4.0-1_arm.ipk; mplayer-bvdd_1[1].1.5-1_arm.ipk; kino2_0.4.2p20_arm.ipk).
then again:
1. make sure mplayer-w100 is installed
2. install the 3 files (but do not exit the installation program during you do this... install all of them before exiting the program)
3. reboot