Are you saying that you have a .swf file which is an album of some sort?
Is it for photos? are there external files, like the images themselves that are part of the album?
The reason I ask is that you cannot improve the quality of the album or photos in it by any conversion process, to HD for example. But you will want to lose as little quality as possible in the process.
So more details on the exact makeup and structure of the album would be helpful before making suggestions on conversion.