You do not any other plug-in till you want something special from your X-Touch. Take the picture (this on BW one from my forum) and print it. From that point, you can follow Mackie Control help file looking at printed layout instead of labels on device. Everything should work as described (except EQ/Dyn buttons).
To clarify the situation with "other plug-ins":
1) there is a mod of original plug-in to work with "MCU semi-compatible" QCon Pro. Not much advantages to use it with X-Touch, since it looks like really compatible.
2) there is my mod of original plug-in which returns EQ/Dyn buttons functionality for ProChannel
3) there is a preset in my own plug-in, it mimics Mackie original plug-in, does not has parameters remapping but supports ACT.