So I went ahead and installed BFME2 1.09 and it seems to have broken Edain mod. :/
To launch Edain mod I of course have to revert to BFME1 1.06 using the 1.09 PatchSwitcher, however, now the UI in Edain mod is replaced my pink boxes: Specifically, the BFME2 logo in the main screen and the graphics around the minimap ingame. Is there any way to fix this? Is it even possible to keep 1.09 installed at the same time as Edain mod?