One problem with making a wesite with Flash is that mobile phones can't view them. But sometimes that old SWF file is still worth saving.
Google has a service called Swiffy that allows you to convert SWF files into HTML5. HTML5 hasn't matured enough yet for regular use, and a standard hasn't been built yet. However, browsers like Firefox and Chrome can use it (and Firefox has just released itself for mobile phones).
Swiffy is still in its beta stages and can only allow 1MB files or lower.
To use Swiffy:
1) Go to: http://swiffy.googlelabs.com/
2) Click Choose File and select a SWF file from your computer.
3) Ceck off the Important message.
4) Click Upload and convert.
5) Now upload the converted file into Assets.
6) Cop the URL for that asset.
5) While editing a page (or event, article, etc.), click the film stripicon and choose HTML5 video.
6) Insert the link to your asset.
7) Click Update.
8) Save page.