Installing Edwin Romance on Mac on BG2:EE

I am using the installer. Everytime I try running it I get this message.



I'm not sure what to do. I used chmod to make things executable, and I moved the files in and out of it's original folder but nothing seems to work. I had this problem with the other two mods I installed, but I don't remember how I got pass them. This particular mod doesn't seem to have a unix executable file, is that what is causing the problem? I also read the readme



and replaced the sox file. I am not quite sure what I should do with WeiDU since the weinstall thing is already inside . I went inside and made both the internal weidu and weinstall information executable.

Anyone might have an idea?