Extreme noob needs help. (O2 XDA IIs Software related)

[Vein]

Hey guys.

I just got me a O2 XDA IIs, and its stock as a rock so to speak, running factory software etc:

Rom: 1.31.00 WWE
Radio: 1.02.00
ExtRom: 1.31.920 WWE
Windows mobile 2003

Now i have never done something like this before so im totaly lost. I have looked through the forum but couldnt find a straight forward solution.

I would like to update the windows to Windows mobile 2005 atleast, and maybe tweak the rom?

If anyone could please post me links to threads to those two ?

Also if it makes any differance its the version made for Australia, as i read somewhere some ROM wont work with our system.

Any help at all would be most apreciated guys really.

Thanks in advance.

[SandStorm]

i recommend you to take a look to the wiki. it have the needed info you need. check the wm5 for beguinners topic there, as the entire wm5 section for blueangel

[realkinguk]

i use this> Helmi_BA_WM2k5_AKU3.5_v1.4.VanillaVersion
basic but you can add what you need later.i,ve try all the other ver except kitchen..

[meehaa]

xplode has released a nice set of ROMs, his latest versions are

http://forum.xda-developers.com/showthread.php?t=287223
http://forum.xda-developers.com/showthread.php?t=302335

with the kitchen even u can cook ur own ROM with customization,
have try :)