I downloaded the 5 seperate downloads for Infiltration 2.8 after I merge them (which wouldn't detect the second file unless I renamed it to just infiltration280 before it was infiltration280-man)but when it is finished merging I get a error when I try to unzip the infiltration zip file. I get a error say "error loading zip file:then it says the target location. I'm using a zip program called quarter deck zip-it. If some one can help me that would be great.