live video flash stream capture from justintv, ilemi

[ndhrty]

hey all,

i'm very new to the concept of live flash stream capturing.
i'm familiar with recording sopcast and like channels through vlc.
i was hoping the process would be similar for live flash streams, however, i can't figure out how to find any sort of address/extension (flv, etc) to load into vlc.
i have done a fair bit of research (although, i'll admit alot of the code talk flies over my head), and have attempted to use programs such as URL Snooper, Replay Media Catcher, httpfox, livehttpheaders, etc. - i just can't seem to find any useful extension address.
i'm looking to capture live video streams off sites such as justintv or ilemi. not archived flash video.

i suppose i'm just curious as to whether i still haven't done enough research, or if this is actually possible to do...
i would greatly appreciate any help, or point in the right direction (guides, etc) in finding an appropriate address/extension to load into vlc.

thank you!