custom installation questions

[eluser]Mahmoud M. Abdel-Fattah[/eluser]
I'm working on Web 2.0 Application and will be hosted on cPanel server. and here're some notes about my needs :

1. Multi-Lingual website.
2. each user will have it's own sub-domain to log-in, ex : http://company.website.com/
3. want to install the CodeIgniter in folder not root, so as I can install some other products on the root. ex : CMS, Shopping cart for site subscription, etc.

So, Any Suggestions??

Thanks for your time !

[eluser]Mahmoud M. Abdel-Fattah[/eluser]
I found a very simple solution for cPanel based servers :
Upload your CodeIgniter to any sub directory , let's say myapp, so it'll be
/home/username/public_html/myapp/

then go to your cPanel account and create a sub domain :
*.yourdomain.com

and Document Root :
/home/username/public_html/myapp/

Now, all subdomains.yourname.com will be routed to /myapp, so now I can make :
userid.yourdomain.com

that will be processed by CodeIgniter on /myapp. and at same time you can install any other applications on your document root.

Hope its easy to understand !