Hi Russ,
Sorry, I use the Google Chrome browser which incorporates Google Translate and although it makes a pretty poor job with Hungarian I just get by (well almost). Incidentally, there is a lot of useful stuff on their main website
http://hobbycncart.com/ and I am doing my best to populate the English speaking section.
There is not yet any help file for F-Engrave but this is a US product and most, if not all of the functions are described in the video's on this page
http://home.comcast.net/~sskroch/Fengrave/fengrave.html The .dxf import function will enable routing of designs but it does not clear all the areas of the relief down to base level so a little hand finishing may be necessary to make a perfect job. It does, however, work very well and for a free software, I am not complaining.
Tweakie.