WordPress doesn’t load when using the wordpress index address

I have wordpress installed on my webserver to a sub-domain (blog.fredmunro.co.uk) but when a number of friends and I try to view it, it just loads the main(fredmunro.co.uk) index, we have even tried typing in the actual address for the wordpress index and still it loads the main site’s index…

Even though there is an index on the sub-domain the only page that will ever actually load successfully and not redirect to the main site’s index is the admin login, so no-one can actually view my blog, which is kind of defeating the purpose of why I set it up.. I know it is possible as friends also have wordpress and have it setup this way, but for some unkown reason it just doesn’t work for me… one of my friends is using the same webhost and it works for them.

I am prepared to give someone temporary access to my webserver (blog subdomain only) if absolutly needed.

Thanks in advance for any help anyone can be.

Fred Munro