A Few Browser Compatibility Issues

Need some help TODAY with some issues on a client's site, seem to be browser compatibily issues, it appears normally in IE... "I was looking at my site yesterday & today, and it's gotten kind of funky-messed-up. On the homepage, my picture holding fish is broken in half, and the green section above the menus on the left has partially cut-off the weblog link (and when you hover the cursor in that area, the section starts jumping around). When you click on the weblog, the domain mapping upgrade is expired and it won't go to wordpress (do I need to update this somehow?). Also, when you go under fly tying materials, then dry fly hooks -- the first 2 paragraphs have the word spacing all messed up.