They are pop unders and full page advertisements, it looks like it should be legal. Just wanted to make sure with other people who have already been there, I'm looking at the adsense help articles right now, and it seems as long as they don't look the same it should be fine.
It's better to review the adsense TOS again before you lose your account. I thinnk it's against google adsense TOS.
That really didnt help me at all buddy, I already reviewed the adsense TOS more than once, looking for someone with experience.