Help with 2 add on sceneries

1. I have the Algiers add on scenery made by Riad Ghenim and I have a real bad problem with the default textures bleeding throught the scenery. Does anyone know of a fix for this problem?(The scenery is found on Flightsim algiers7.zip and was found on avsim but not anymore)2. I have ISD's Milan Malpensa scenery plus the service pack that corrected the ground flickering/disappearingat the airport. In the service pack the parking file for AI is named AP9-ISD_LIMC-spl.bgl now can I use ADE to fix up the AI parking without messing up the scenery? I tried using AFCAD but that just messed up the scenery.Thank you very much for your help.