Biggest possible size photos on hotnewsflash

Hi,
I want to know what the biggest size for photos (dimensions) is, that i am able to use in newsflash module without messing the site and what settings should i use (eg for tabs???). I dont want anything to be displayed apart form the photos, i.e i dont want text like acapulco seats, capitol living, selene selection, next to the newsflash module, only photos.

regards,
Dionisis

Set in module setting:

Tabs width = 0

and

Width of the images = Module Width (default is 960)