Sophie documentation for version 1.0 is available for download as a PDF (2.3 Mb). This isn't the final version – we'll have it in Sophie very soon – though it should make working with Sophie easier. Please point out mistakes or things that are unclear!
You might also take a look at our tutorials page, which includes tutorials that run in Sophie as well as videos showing how to do basic things with Sophie.
And finally, if you're having trouble with something, you might check the known problems page, where we suggest workarounds for problems that are in the process of being fixed.