Thanks. Premiere Pro CS3 provides a number of keying effects for chroma, blue screen compositing etc. I guess I'm just more familiar with it than AE. I'll have a play with AE as I'm not too familiar with it but if I find AE a steep learning curve in the short time I have, I'm sure I can do it with Premiere. Yes you are right I need to remember to output with an alpha channel from flash, all I am interested in is the foreground info to composite on the screen of the TV. I certainly could do with learning AE though when I get time.

Thanks for your help
Mike