There is a lot of helpful information on the jtechphotinics website. Under product details there is a documents section and under the software section there is a page just for the Inkscape plugin and for the PicLaser program license (which I ordered today). I assume you ordered the same kit I ordered. Did you order the laser fan upgrade? I did not since I had a fan and I can print the mount. The only issue I had was the jst plug needed to connect it to the control board. Since your kit will not ship until Jan 4 (per the website) you might want to add to you order.
The extension will create the gcode right from InkScape….or at least that is what it is supposed to do. I think I found my issues and I hope to try tomorrow.
I would like to know the software and such that Alan used so I hope to hear from him soon.