Thank you!
The network ad should be just a sidekick placement, but it's knocked the Leaderboard ad out of its spot for some reason. Help? Thanks!
It looks like your AdPlugg Network Ad isn't targeted to any particular Placement or Zone. This allows the Ad to appear anywhere (it gives it "run of network"). To fix, target the Ad to the specific Placement(s) or Zone(s) where you want the Ad to appear.