Have you reinstalled/updated your shockwave?
If not, you can do so at
http://macromedia.com
Are you using the downloadable version of the game?
If you are, did you download the missing DLL files from off the downloads page?
If not you can find them here
http://streetfighteronline.com/download.html
Also try doing a search at
http://macromedia.com or
http://google.com for the missing dll's