Problems with Elgg site graphics after installation

I am trying to host an Elgg site on Siteground, and after installation Elgg on their server, I accessed the site url and was prompted to change site settings. After giving site name and removing Elgg branding, the site's graphics changed completely into basic text only website. I have tried enabling/disabling the cache settings and removing symbolic link cache but it's still the same. Any help with this would be appreciated.

Hassan