Well, besides whatever episodes Carmen Sandiego fans upload to this Fanpop spot, you can also watch four episodes from season one at link. Awwww - I miss this show and game so badly! Heavy nostalgia moment.
If someone could locate and upload "The Hammering Hank Heist" that would be the awesomest thing ever- I'd love to see "the one where Rockapella bust out laughing". ^_^
I really wish that I could find some Where in time episodes. Especially episode 28, but oh well, I may get it in the futer, but 4 now I'll just deal with it.