WordPress MU

When somebody signs up to my blogging site. They should sign up with " - " hyphens for example
my-blog.mydomain.com. With Wordpress Mu it is not allowwed to sign up with hyphens,
but in Blogger.com its allowed.
Please release something about it, how to fix it?
It is urgent for me,
Waiting for replay.

yes please if somebody knows , tell me , too.

Did you search the forums? I believe this has been discussed previously at some length. That's probably why no one answered.

Discussed here since I had to find it for another requester:

http://trac.mu.wordpress.org/ticket/363

Thanks tdjcbe

@tdjcbe

I couldnt do it. Do you know any other link that explains how to add hyphens when signig up ?

@mrdomain
Did you actually read it? It seems to quite well explained to me. Even down to the files and line numbers to change.

What "couldn't you do"?

yes it is well explained but false i think. I did what is written there. But after all, when I try to sign up with a hyphen my-blog.domain.com it says only letters and numbers.

"Only letters and numbers allowed" and mentioned there that ".", "-" and "_" are allowed also.

but still says only lettes and numbers as there is no such sententec in wpmu-function.php . Now dont know what to do?

If you know how to do it , please tell me. Thanks.

Finally I have solved the problem , if anyone needs i can explain how i did it.

mrdomain, please, do :)

VentureMAker

Do what exactly told here http://trac.mu.wordpress.org/ticket/363 don't miss even a blank :).