The first one implies an attempt to connect to a warez (cracked software) site, in this case probably to get a free version of Nero.
Ring any bells at all? Anyone using the computer likely to try this?
The second has got to be some kind of FP, on the face of it. But the fact they are not actually in your bookmarks implies something a little more sinister, perhaps an attempted browser hijack.
Any other symptoms?
Personally, I wouldn't touch AdAware anymore, support for SE has been discontinued, and the 2007 version I found exceedingly buggy and had plenty of false detections during its brief life on my machine.
Try scanning with something a bit more effective, like Superantispyware. (free and paid versions available.)