Here you can download latest firmware for Cirqoid machine: cirqoid-0.2.5.bin
Here is the link to the experimental firmware to be used with cirQWizard versions 2.0.x - cirqoid-0.3.2.bin
Please note that experimental firmware won't work with previous versions of cirQWizard. When upgrading to cirQWizard 2.0, it is recommended to upgrade firmware first.
If your computer does not recognise connected machine, you will need to install a driver. The machine uses a FT232 USB<->USART converter, so the driver can be downloaded at FTDI site
Autodesk Fusion 360 is very powerful and very affordable (and in many cases free) 3D CAD/CAM system. This post processor can be used with Fusion 360 CAM to generate g-code, which in turn can fed to Cirqoid to mill your part.