Aze, I am in the process of setting up my software under linux as well. The site you linked suggested using playonlinux as it worked. I’ve built a couple POL install scripts in the past and here shortly I will see what i can do about writing another one up for estlcam. Did you ever get your install running and if not were you running it with dotnet, gdiplus, and dx9 installed?
Another note, are you running 64 bit or 32 bit?