Chances are, a simple conversion from swf to scr will not work. The reason being, that the swf is (very likely) relying on a xml value for the dates and countdown timer. Unless it was hard-coded, which it rarely is, it's won't keep the accurate values or possibly any at all once converted. Just a thought...
EDIT:
Just noted the above. Again, look for an xml value is the swf/fla file. Unless it can be hard-coded, it won't work.