Front Page wont load properly

I had my website designed beautifully, until I loaded my logo. I made the mistake of loading a jpeg version of the logo but have since uploaded the png version. The logo is way too big. I was trying to get rid of it by emptying the cache and inadvertently said remove to trash. All my pages are working except the home page. I can not get rid of the blog page.

Please help.

Thanks,
Tica