At least it worked in the end.
One problem: to install all the software, you need something like more than 6 gigs of space on the hard disk. Why, I'm not sure, as the estimates say only 2 something gigs. But it kept saying not enough space, so in the end I just allocated 7 gigs on the main hard disk for it.
The nice thing about installing Solaris on a virtual machine was that I could delete a hard drive and create a new one, and reinstall Solaris on that if I messed up. Of course I might have all this unused space being locked up, but as far as I know, I don't. Can you tell I'm a newbie to VMWare?
2nd problem: after using the Solaris OS disk (disk 1) to install the os, it prompts to remove the cd and reboot. On reboot, it would ask which partition to boot from, and of course I chose the Solaris partition. Apparently, this is the wrong choice, as Solaris boots nicely from the Windows partition.
Anyway, once I allocated enough hard drive space, everything went smoothly and I have a nice Solaris installation. I think. Laf. I didn't explore much. Once I was finished I went home and cleaned my apt and crashed.