WordPress MU

Im using 'www.clanlogs.net' and I created 'nekusagi.clanlogs.net' but I get an error when I try to get in there... can someone help me to fix it?
This is my first real install...

I just had a look at your site and all of the links on there are broken. I signed up for a blog and the formatting was all wrong (everything was black - including the font) so it looks like you have some fundamental issues that you need to resolve before trying to get wpmu up and running. For example your home page is http://www.clanlogs.net but all of your links point to http://clanlogs.net which are all broken. For VHOSTS to work properly in wpmu, your main site should be located here: http://clanlogs.net
There are ways to get around this and people have provided ways to do it in these forums before. But you need to plan how your site is going to work first.

Also, read this page: http://trac.mu.wordpress.org/wiki/DebuggingWpmu and tell us whether you're using VHOSTS, or subdirectories, and what your htaccess file currently contains.

Well, let's reply...
Im using VHOSTS, all the problems began after add the configurations in httdp.conf.
Indeed the templates aren't finished (I forgot some stuff)
Well, basically it was 100% ok until add the
"ServerAlias *.clanlogs.net"
"RedirectMatch 301 (.*) http://clanlogs.net$1";

based in readme file

There's no "redirectmatch" mentioned in the README, remove that line.

well, it is in the website. Anyway, it is working now