Do I use the same "myui" folder as for EQ2Map?

[Apheetia]

I'm trying to install the custom UI, and the instructions say to make a new folder called myui or something like that, and put the files in there. Well, I already have a folder called myui, which is where the EQ2 Map stuff is. If I put the stuff from Portal into this folder, tho, it says it wants to overwrite some files that are already there. How am I supposed to do this?