MBL not working

I dont know how to explain this but ever since i got MBL I dont have the "looks" folder. and since that is not there i dont know how to add custom MBL colorings. Either its my laptop (mac) or its maxon. And yes i have tried to re install it so many times and it stil isnt there. Looksbuilder only has Defalut Looks, Default tools, looks4presents and some picture "sample.tif" pls help