SBuilder Custum texture Issue

I'm stuck here with a problem. I want to add custom grass texture around my airport and use Sbuilder to add a textures polygon. I compiled everything..... and got the neccesary files in my "work" folder including a "temp.bmp" file. I added them to my "...Addon Scenery\Airport\Secenery and Texture folders but the texture didn't show up. Then I resarted SBuilder to check if I missed something. I then got the message that I have to copy my custom texture to my POLYTEX folder. I searched forums and found to create a sbuilder\tools\polytex folder.... I did that and still get the "copy to polytex folder" message and still can't see my custom texture. What am I doing wrong?Thanks in advance