Hey Axel, just a point of clarification here:
Which generation is your iPod Touch? I believe the OS 3.0 is only available for iPod touch 2G and above. If your iPod touch is the 2G or above then you can update the OS through either iTunes or clicking on this link [
HERE
|
http://www.apple.com/ipodtouch/software-update.html
].
3.0 works fine on all generations of iPod touch, including first gen. I believe 4.0 is the one that isn't going to work on the first gen touches.
Also (and don't quote me on this!), I believe that major updates to the iPod touch OS (eg: 2.x to 3.x) are $4.95, while the minor updates (3.0 to 3.1) are free. The 3.1 update shows as $4.95 simply because it's the current version.
~Lyssa