I would also EXTREMELY... HIGHLY... recommend renaming your files without any spaces in them. Truly that mess of a link you have there is a wonder it would show at all lol. Replace your spaces with dashes - or underscores _ and the browsers and your visitors will love you for it
P.S. This goes for any folders you upload also, and it's always a good practice to use lower case letters than capital letters for any files you want your visitors to be able to reach more easily. Things like this file probably wouldn't matter, but it's good practice to get into for all your files so they are uniform and you don't have to remember what you capitalized and what you didn't when you're typing it later yourself even.
The reason for this is most servers treat the difference as totally separate entities so something like your file (without spaces) would be like this:
screen_shot_2012-03-13_at_204.01.39_pm.png
and that is not seen the same as this:
Screen_
Shot_2012-03-13_at_204.01.39_
PM.
PNG
or even the same as this:
screen_shot_2012-03-13_at_204.01.39_pm.
PNG
servers will treat those as different files and of course won't be able to find them if not capitalized exactly the same as the actual file. Makes it easier if you do it all in lower case letters and even you'll find it easier to remember later