Yes you can, you give your page's space to google adsense, you are owner of whole page, you can put any ads at any place of your page. Google dont purchase your site's space. Its your decision which place used for advertisement of any company. Dont worry. Go Ahead.
You can add multiple ways of making money on one page - but I don't recomment it. Anytime I have tried to do this with a site already making money with Adsense, my traffic, page rank and $ have taken a dive. Suggest if you want to use different ways of monetising your site, you first split test on one or two pages, before rolling anything out site-wide.
I registered with trafficrevenue, but their sliding ads doesn't work with IE. It corrupts the webpage because the ads uses multiple frames. Anyone got solution for this problem. I checked on IE8
I was using those ads on firefox and it had the same problem. Those ads sometimes crash the browser. Those ads take forever to load and load after atleast 8-10 redirects. I think if they are trying to install something on your computer then adsense might have a problem with them.