Zoom H4n - Cubase LE5 for Mac?

[Oggy]

Hi Chaps

I've recently come into possession of a Zoom Handy Recorder H4n, our drummer (the only one with any money in the band) bought it a few weeks ago but doesn't have the time to play with it and get it sorted out so he's handed it over and I'll be doing the business with it.

I'm getting to grips with it and think I understand enough to be able to record at our rehearsal sessions and perhaps gigs.

The beast came with a software disk (Cubase LE5, OEM Version) to enable editing / enhancement of the recorder files but I have a problem! I have a Mac Mini that I bought some three and a half years ago the operating system software on this Mac is designated at 'Tiger Mac OS X 10.4.11', apparently the Cubase LE5 software needs 'Leopard Mac OS 10.5.0' minimum to run the Cubase. I've been told that there are some free versions on Cubase available on the internet that will allow me to do a limited amount of editing / enhancing of the files from the Zoom on my Mac and will run on the older operating system - I hope that some of you guys may have some pointers to give me on this.

I can get files from the Zoom onto the Mac just by plugging the device into a USB and they play OK on iTunes and can be stored wherever I want to put them on the Mac so I guess that any piece of music editing software will be able to recognize them and allow me to manipulate / edit them?

I'd be grateful for some advice on the above, I don't really want to go spending loads of cash upgrading my Mac OS just so that I can use the Cubase LE5 software.

Thanks chaps.

Oggy