Wordpress real estate site

I have a site located here: [login to view URL] The site is built on top of a real estate theme. The previous coder allowed for large CSV uploads of real estate listings. For some reason the listings cannot be uploaded. It seems that larger listing uploads are not working. There is also a csv that has images that need to be imported into the certain resorts on the pages. there are hundreds of images that the original coder was not able to upload via his script. I'm not sure why it doesn't work, but it took him over 5 weeks and it's still not working. I have attached the image upload file for examination. The file has urls to the resort images that need to be uploaded to the new site. Also, in Internet Explorer there are some CSS compatibility issues: 1. Top Nav – white lines when hover over top nav items and cant’ see nav items 2. Search box – not seeing resort, city, state text inside search box 3. In general throughout site, not seeing copy on the submit buttons. 4. Contact widget – can’t see copy on submit button