As it stands I am un able to use this addon since I purchased it on release day
The Trial version was available since release day, you could have chosen not to purchase it, if it didn't work on your system.
Have you installed the current 1.1 version ?
and wanted to know if a fix has been found for this problem??
The problem is not the scenery, the only thing we can found, is what wrong setting in FSX affects it. Your FSX install is surely not fresh, since you installed two very large addons. Did you tried the scenery *before* installing them, when FSX was *really* fresh ?
However, from your description of the problem, it doesn't seem to the the same of bkircher: you said you have *some* buildings missing, he had *parts* of buildings missing. Please, describe exactly if this is your problem, and which buildings are missing and if whole buildings are missing, or just parts.