Hi Tigrou,
Mod you're making is really impressive, I can tell you that:) If you need a Czech-English translator, feel free to ask me - I'll be at your service:)... Good luck with your work.
Maybe you guys will find this useful. I've translated just the part describing the MFDs since the paragraph above was mostly just a common and well known explanation why CRT displays outperform obsolete needle gauges.(I can translate it as well if you really feel like reading it;)).
Because it was too long to post it directly I've attached a .doc file(it was somehow too large so I had to zip it). JAS-39 MFDs description.zip