Help required for a CNC machine

[oosk2k6]

yo i have acquired a number of relatively new and unused CNC 3-axis and 5-axis milling machines, but with no software. the machines are designed and manufactured by HME Technology, their model number is R50.

i have only used CNC machines that have their software pre-installed. i understand that there is a two-part software process, one program converts the STL file into g-code data and the other program feeds this data into the machine. i have tried mach3, lazycam, deskproto and after 5 minutes i realised that it obviously isn't plug-and-play and i had no idea what i was doing for the initial setup.

could any of you guys post some insights or something that would enable me to get the machines up and running please?

cheers and mucho appreciata!

p.s. one of the milling machines is shown below