The 4th axis works mechanically... I get rotation etc. from the Interface. I have not run any programs on it yet. I am waiting to hear back from Techno regarding some 4th axis user info they supposedly have. Mike said that once he helps me setup the HOME sensor that came on my 4th axis, then we would walk through some basics. Essentially, I want to know about establishing the HOME position, touching off on a project, etc.
As for the actual 4th axis CAM, I have Aspire also and could use the Wrapper feature on some projects, however, I need full simultaneous 4th Axis capability, as well as indexed milling, so I chose to get madCAM, which plugs into my Rhino 3d software.
madCAM has a free trial download and the price was right for what I want to do. Rhino CAM is a plug in as well, but costs twice as much because you have to buy Rhino CAM then pay the same amount again to add 4th axis capability. It also seemed to be glitchy when I tried to use it... but it was the price that really made to decision for me.