Well firt of all what Platform are you using Windows or Mac, i suppose your using a Mac if your using toast.
I suggest you check out this tutorial if your using a Mac
http://www.union.edu/RESOURCES/curriculum/tips/hybrid/
If your using a PC then you can use a tool called MacImage and create the iso file which will work on both Platforms, you can also use MacDisk which is a emulator for mounting and reading Mac based CDs to test out your Hybrid CD ive used these tools a few times and they always get the job done.
Theres some new tools for crossplatform projects such as this im looking into to see if its any better than the current methods and tools i use its a program called MDM Flash Studio Pro which has a plugin so you can make your flash projects into crossplatform presentations.
check out the software here http://www.multidmedia.com
if you need more help let me know 
