Category as subdomain

I am new to wordpress

I need my categories as subdomains i,e. http://domain.com/category/post to http://category.domain.com/post

I have tried using wp-subdomains , subdomains, main category subdomains plugins but i have a problem , when accessing my site home page all icons (theme icons) are displaying perfectly, but when i access http://category.domain.com/post the images that i have included in post are displaying perfectly, but theme icons(fb icon.....,etc)are not displaying...

any help is greatly appreciated

My site: http://onmirror.net

Problem: http://sports.onmirror.net/fifa/