My admin is missing!!!

I had my blog on blogger. I then registered my own domain and imported it into WordPress and uploaded it onto my server (all of this with much help). Everything was working wonderfully.

Last night, I was messing around with my website, not even touching the blog, and I must have done something, but I don’t know what.

Now, if I go to my blogs’ URL and log in, it doesn’t go to the administration page…it goes to what looks like the index.htm of my website, but without the images, etc. So, now I have no way to get to the admin side of my blog, so I can’t post, etc.

How do I fix this? Thanks!

P.S. Please keep in mind that I have NO idea what I’m doing, so easy on the techie-talk. Thanks!