Widescreen editing / capture confusion

[visualmagic]

Ok, where do I begin? I feel like an idiot for asking what I hope will be an easy question to answer, but I cant find the correct threads that have answered this, so here goes. Any help would be exceptionally appreciated.

For 10 years now I have been video editing for broadcast television in a regional area, happily and with no dramas.

Sure enough, recently the 'widescreen' infiltration has began, and I have chosen to avoid looking at it, continuing to edit on my outdated DC30+ PCI card, and nevertheless producing sufficient results with no complaints.

Recently a client has asked me to edit for him a video, however he primarily wants it to play in an art gallery on a plasma TV - widescreen.

My Premiere 5.1 has no setting for widescreen, and my 6.0 does, but still says 720x576 (PAL setting).

My cameraman does not have a switchable camera, so shoots in this resolution, but I figure that since what he has shot is chromakey, I can get around stretching the picture.

Most of the background is floating graphics so it should all be easy but I am really confused.

How do I edit in widescreen?

If widescreen is simply normal resolution stretched then why doesnt everything on telly look stretched?

How do I edit this project? Do I still work in 720x576 in Photoshop and Premiere? Or should it be something else, like 1080 x 576? for example?

I cant believe this is so hard. Surely there is an easy explanation.

Please help. Please. Please Please.

[Faustus]

Please don't double post. I'm locking this one. The one in General is still there.