Q3. How do I burn an Autorun Hybrid CD (cross-platform compatible)?

A. The above two answers apply to this question.
However, you will have to choose "Custom Hybrid" from the Other Menu, and then for each side of the disc use the same methods as described above.

As a side-note, if you create a temporary partition, copy all your files that both Macs and PCs will use onto this. Then, when choosing you PC data in Toast, choose the files on the partition that you already selected for the mac.
Toast will then write these files only once, but they will be visible on both platforms, saving space on the CD (and time burning). Files that are only for PC, should not be copied onto the partition when you select them, they will then only show up on the PC side, and not the Mac.

[SJT]