Are you looking to IMPORT from FLASH or EXPORT to PHOTOSHOP???

Because unfortunately photoshop being primarily a raster based program there's no way to export or save as SWF.

Illustrator is primarily vector and is perfectly suited for FLASH.

If you were able to export anything from photoshop it would be the vector coordinates from the pen tool and possible the raster information as a bitmap...

As for IMPORTING anything from a SWF...

Good Luck,