iMac Intel 2.8GHz, 4GB RAM, running 10.5.8. Photoshop CS3 installed.

Because we have recently started taking a course in Photoshop, and because the software used in Module 1 is Photoshop Elements (v.7, Dutch, for Windows), I bought Photoshop Elements v.6 for Macintosh, so that my wife and I can do the class exercises at home. Installation went without issue, but there seem to be problems: instead of launching the Bridge version that was installed together with PSE, it launches Bridge CS3, which does look different. So I close off Bridge CS3, hide PSE and manually launch Bridge (PSE), but then get the error message:
Quote:
Adobe Bridge cannot be used at this time because of licensing restrictions. You must have installed and launched at least one other Adobe application to use Adobe Bridge.

But I have... so what's the deal?
Any suggestions? Is there anyone out there who runs PSE along PS CS3? What about installing PSE, not in the main applications folder, but, say, under a second user account, in a local Applications folder. Would that help?

Thanks for any input that could help us out.

There's no way out of here,
When you're in here, you're here for good (David Gilmour)