Well, I downloaded FH again and tried again. This time I imported the correct GEDCOM file (my fault last time) and it all loaded OK. I had a quick play whilst reading the instructions via Adobe. I have now removed the program again as one of my daughter-in-laws has already bought FH on a disc and has the instruction book. Next time I see her, she will lend me the book and perhaps I will get her to show me how the prog works (she worked with computers before having her baby so should be a good teacher). There's no point in having a 30 day free trial starting before I am ready to try it out!!
However, apart from being able to have the complete tree printed off as a chart, I haven't found any benefits over Legacy at the moment.
Liz