This file was written in Flash CS4 and uses AS3 . I have provided a Flash CS3 version also.
This file is contained within a single movieclip on the stage so you can use it in your projects.
You can also customise the graphics by editing the relevant movieclips in the library and change the fonts.
Demo
http://activeden.net/item/slot-machine-game-with-random-hold/397438
Download
http://www.mediafire.com/?896lfi1yb30lpwa