I had the exact same problem and after 2 hrs of fiddling I have it all sorted.
New laptop with windows 7 , new style launcher, EQ map was throwing errors all over the place.
First off make sure you only have the new instalation of EQ2....I had 2.
The correct one should read C:\program files (x86)\Sony Online Entertainment\
If you have a folder C:\program flies\Sony\ Delete it !
Here is the bit that caught me out.
The path for the game that you put in the first box in my case was.
C:\program files (x86)\Sony Online Entertainment\installed games\Everquest2\
In the second box you need to point it at the launcher.
This is in a hidden folder. You need to show hidden files to be able to navigate down this path.
When you get there you'll see the white 'S' on black background icon.
Point it at that and all is good.
Also you need to right click the Eq2maps Icon then properties, then compatabilty. Tick the box that says "Run this program in compatability mode" and select XP sevice pack 3. Finally tick the box at the bottom to "Run as administrator".
I now have a fully working Eq2maps with Windows 7 and the new launcher
Hope this helps