OK, here are the caveats I can remember off the top of my head. One video track only. If you have more than one video track, export multiple edl's, one for each video track. No digital files as sources (picts, aiffs, etc.). You may be able to get away with digital files, but you may not. Try doing a test first. Freeze frames may (or may not) be a problem. Speed changes, probably not a good idea. Most effects will not transfer and might give you problems. Only simple transitions (also known as "switcher transitions") such as dissolves and certain wipes will transfer.
You might check out automatic duck and see if their export plug in will get you a file format that will work with the flame. Do a google, to check out their web site. I've used their plug in to export audio for use in protools and it worked flawlessly.
The real key is to run tests before you're in a mission critical deadline.