Has anyone played this on w-7? It's not on any of the lists.

The GOG version is listed as compatible with Windows 7.
http://www.gog.com/en/gamecard/journeyman_project_3

The original version might have to be played inside of Virtual PC. I don't remember if it used QuickTime or not.

Not having Windows 7, I can't test this. However to play JP3 with WinXP SP3, it works best to reduce audio acceleration to Basic and use WinNT compatibility.
Perhaps the equivalent can be done with Windows 7.

The GOG version of JP3 played flawlessly on my Win 7 64 bit computer. One of my all-time favorite games.

Were you just able to install it - no tweaks - and it worked, Uncle Reg ??

That's right, no tweaks required.

And no disc swapping.

This is the GOG version that I'm talking about. There are no discs. It's a download.

Ahhhh. I didn't know you were referring to the GOG release, Uncle Reg, but I have three versions of this wonderful game .... The original multi-disk, the enhanced DVD and the GOG.

So Hopefully I'm covered !!