I never imported a SWF file into After Effects before, but, when you import your .SWF file, in the Import Window, is there a check box, at the bottom, where it is written “Import SWF Sequence”? If yes, might want to check that. If there’s any; hope someone will give you a better answer.
Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.5 Professional