Here is a pretty convincing pic of water on mars...I found this..
(I don't remember how to post a pic so here is a link)
http://img19.imageshack.us/my.php?im...evp2557bm1.jpg
And these appear to be growing!
http://img214.imageshack.us/my.php?i...growingji4.jpg
I believe that there is not only water on MARS but also living things.