I don't know if Win98 works on PCTask, but Win95 does. However, it is *really* slow (4 hours to install, 30 Minutes to boot).
You should get a full set of installation disks of DOS 6.2 or Windows 3.1. This is quite usable on PC-Task.
PCX is nice to try once but for every day use PC-Task 4.4 is the only choice IMHO.
And of course you need a 68060 accelerator. Any slower processor does not allow to run anything useful on a PC emulator.
Bye,
Thomas