Slideshow pictures quality / Top menu listings

Hello,
I have two questions.
1. Why are the slideshow's pictures quality so bad? The pictures in the ads are good.
2. How do I modify my script so all my listing types are shown in the top menu?

Thanks in advance.

Can someone help me?

you should create a ticket for faster and better support. They will check your site and fix it. Posting here if hard to figure this problem out with just picture