Hi newbie here. I bought a skin ''Slider XP'' and I did not see that it worked only with WindowBlinds 6. I had this application but I thought I had to remove it before downloading WindowBlinds 7. Do I have to pay again for WindowBlinds 6 to install it again? and can I install it even if I have WindowBlinds 7? I wanted the Gold color for Slider XP. do I have to buy the yellow preset?. Hope I am at he right place, if not so sorry. Please help.