My situation is this. I'd like to upgrade to Leopard, but I make my living with Adobe Creative Suite, and there are widespread reports of compatibility issues between Adobe CS3 and Leopard. Still others say that Adobe works fine for them in Leopard, that the compatibility issues are minor annoyances, no worse than the usual range of annoyances in the Tiger setup.

What does this have to do with Billings? I would like to try working in Leopard while maintaining the ability to jump back to Tiger if necessary, so that I can try out the new OS in a real world working environment and see if I encounter any problems I can't live with. As such, I have set up Leopard on an additional drive so I can boot up either OS and work. I keep all my data and applications on my old Tiger disk, but I can run them from the Leopard OS on my second "sandbox" disk. So far the one app that is giving me trouble is Billings.

Ideally, I would love to be able to launch Billings in Leopard and have it read and write from the data files on my Tiger disk, so that when I jump back to Tiger for some reason, all my data is the same. This works great for most of my apps, like Entourage and iTunes. An alias on my Leopard disk does the trick. But it doesn't work with Billings sadly.

So my question is this:

What is my best option to work this way. I've been exporting slips that I worked on in Leopard to .bex files and them importing them into Billings when I am back in Tiger, but this is cumbersome. I have read on the forums that it is inadvisable just to copy the Billings data files back and forth between the two drives. And when I've tried it anyway I have noticed strange behaviors -- one of my clients, for example, seems to clone every time I make the crossing so that there where there was once one of him, now there are two, then three, then four, etc. Yeah, I can just delete the extras, but it makes me worry that there may be other more serious corruptions in the data that are not as readily apparent but much more damaging.

Does anyone have any suggestions?