WordPress MU

Hi There
i have many web site,and i want to use wordpress for my web site
users to sign up and have blogs
i want every user to have blog at my site same as:
http://www.user.MySite.com
or http://www.MySite.com/user
but i don't know how can i allow users to sign up and have their
blogs as subdomains?
i will use arabic wordpress
waiting your help Plz
Best Wishes
Seleno

It's either or. You can't do both styles. You have to choose which one you want and then follow the instructions to install WPMU.

Hi There
thanx for reply
i want this:
http://www.user.MySite.com
for arabic and english blog
is it the same?
and can i add much themses that user can choose?
waiting your help
Seleno

still waiting your help
thanx

For that URL, follwo the instructions in the included readme file in the download. You want the one that says "vhost" or virtual sudomains.
Same for any language.
You can add whatever and how many themes you want.

Friendly reminder also that for the *.com TLD, you don't put the 'www' in there when you already have a third level name. (ie 'user') It breaks a number of DNS servers and is not acceptable under more conditions with the registar.

thanx alot
but what do you mean by this:====
Friendly reminder also that for the *.com TLD, you don't put the 'www' in there when you already have a third level name.=====

do you mean the subdomains will be like this:
http://User.MySite.com?
and will not open like this: http://www.User.MySite.com?
what if i add it as:
http://www.MySite.Com/Blog
it will open with www?

http://www.user.myblog.com will not work for 30-40% of the internet.

user.myblog.com will work for everybody.

'user' takes the place of the 'www'. You shouldn't be using both of them at the same time.

It also causes issues with some search engines.