the first one is Google's HTML to embed in website this (without #)
#<a href="http://picasaweb.google.com/Josh.Harmsen/Ascorbate/photo#5225184532568846482"><img src="http://lh6.ggpht.com/Josh.Harmsen/SIOVpe2hsJI/AAAAAAAABDE/-Q48H_SzfL4/s800/graph1.jpg" /></a>#
and the second I used
[*mg]http://picasaweb.google.com/Josh.Harmsen/Ascorbate/photo#5225184532568846482[/*mg] (sub * for i)
Right click on the pic and copy the address link.. Some website put extra crap after the actual link so just delete anything after JPG. Some site required (like this site) so try both.