Hey Manfly2000!
It\'s pretty easy. You should look at the Documentation at openzaurus.org, it\'s really short, but covers all the neccessary details. Basically, it\'s just
1) Find the appropriate initrd and zImage for you
2) Put these on a compact flash card
3) Flash
3) Is just a matter of pressing the right buttons, and I assume you know how to do 2) (just one thing: Rember to rename the files to EXACTLY \"initrd.bin\" and \"zImage\"). Now 1) isn\'t really a problem as well: Once you decided if you want OZ 3.2 (stable) or 3.3.5 (unstable), there\'s just one initrd you can download (it\'s named a bit differently, but you\'ll see it on openzaurus.org) for the 5500. Now there are different kernels availabe (these are the zImage files), and the difference between each is how they use the RAM. Read the docs for a real explanation, you may want to start with the one that has something like \"32-32\" in it\'s name, that\'s pretty common.
Hope that helps, cheers
Philipp