I am looking to sell banner space on my blog, is there any simple php script that can do this? This is all i want it to do, track the number of impressions it gets and a tracker where the advertiser can see how there ad is doing. Anything other than openX and possibly free? Thanks.
OpenX worked great for me, I just applied it so that it worked with my website and I was done. I would look into using it before you consider buying something. Other then that you'll need a decent amount of visitors to actually sell the ad space, and you'll need to sell at least three ad slots to make it worth your while of setting up. When you add a advertisement to a premium spot on your page, it's giving the viewer/customer just another link to click on and leave your site.
You can make a page, on your blog where you sell ads. Take a look at http://www.johnchow.com/advertise/