I'm trying to do a document with two column layout. I've encountered two problems which googling doesn't seem to give me an answer to so decided to join here and ask

1. table* I have a table with [p] positioning. However it seems to go to the end of the document instead of being near I put the table. Any ideas on how to fix it?
2. Table background. Is there a way to insert a picture at the background of the table. I've found wallpaper and eso-pic modules, but neither helps on this. As a side note I can't get them to work properly either (I managed to get a background pic which didn't fill the entire page, but left a bit from down and right side empty).
Any help with these would be greatly appreciated. On positive side I managed to find an answer here to place table* to the bottom of page, yey!