Registration and users conflick

Hi,

I am trying to create exact website like bloggersdelight.dk

my website is designersmania.com
i have created sub-website using pro site and wordpress multisite concept
raju.designersmania.com
test.designersmania.com

Designersmania.com is main website using which designers will create there own website and put there portfolio, now once a new website is created raju.designersmania.com and when click on register once again its showing a page to create new sub-website which i dont want to

I want to create exact website bloggersdelight.dk for designers can you please give me the same

Thanks
Raj