What am I missing? I had three clicks, zero ads.

I clicked here: http://www.getpaint.net/download.html

Then I clicked here: http://www.dotpdn.com/downloads/pdn.html

Then here for the file: http://www.dotpdn.com/files/paint.net.4.0.install.zip

I use adblock, but when I fired up another browser, I still had three clicks, and the only ads were one typical square block ad, that didn't get in the way at all.