Thanks, but it's not what I am looking for. The secureToken is 'embedded' in the swf file. You can't get it with a 'sniffer' like this. AFAIK the only way is to either decompile the swf (which can be difficult when the code is encrypted/obfuscated/complex) or scan the memory (using an hex editor for example).
Anyway here's a little trick. You don't need urlsnooper to get those urls
Just try this:
http://reallifecam.com/resources/gue.../playlist/03_1
Simply replace 03_1 by the camera you want.
If you are a member and logged, replace 'guest' by 'member' in the url I gave you so you can get any camera stream.
Thanks for looking at it though.