Hi,
I need an invitation code to be able to install Elive 2.0. I have to evaluate it so I am not going to pay it.
So I need an invitation code.
Can someone email me one working code?
I am not able to contact them on IRC.
Thanks

If all you have to do is evaluate it, then download the zeitgeist version to try it.
http://forum.elivecd.org/read.php?4,4864,4864

If I understand what I'm reading on the Elive website, the latest (current) version of this thing can be downloaded and used Live, without cost. Using it Live should be adequate for evaluation purposes, perhaps even enough to write an article about Elive and earn yourself an invite all on your own. See here:
http://www.elivecd.org/codes
and of course, the Payment Options section here:
http://www.elivecd.org/Help/FAQ

If you don't want to pay for something that costs money, and are not inclined to earn yourself an invite for it fair and square, I don't see why anyone else should or would want to send you the invite that they worked for or paid for.

There are other means besides IRC to contact Elive as well. Perhaps you can make some headway by using another means, like email. See here:
http://www.elivecd.org/Main/Contact

Finally - see post #2 above. Looks like a good option.

I have searched through the whole elive-site, but not found any development versions. Do you have a link? I want to try the performance on a very outdated laptop, but live versions are not good for performance tests.

This looks appropriate, a list of mirrors apparently hosting development version(s) though I didn't go investigate the actual stuff available on any mirrors:
http://www.elivecd.org/Download/Development

EDIT: Heh, having checked out a mirror link, I get this:
http://elive.jdf4you.org/isos/development/
Not encouraging - sorry! :/