I've been experimenting with 1.75, and I'm very happy with the increased flexibility of the program. I'm finding that layering partially-hidden staves, and staves with 0 or 1 line, allows new possibilities for tablature, and also for jazz and pop lead sheets (melody lines with chord symbols) and fake charts (chords only or words and chords only.)
I'm going to post some of my experiments on the Scriptorium; I'm interested in hearing what others have been doing along the same lines, and sharing ideas.
I'll check this thread, or you could email me (plain text or NWC attachments only, please - I have an old system) at **mcfarvan at glinx dot com**.