I dont understand. i use that overthewing in many scneries and does not yield an error on my configurations. LOWI for example.. and many many others. A few users have complaint they dont like it (which I do), not that it doesn't work.
That's because you have installed any one of the sceneries that came with it.
That *specific* model is from CYVR, but it's in the same folder ( FSDT_Jetway ) with another model which was installed I believe with KIAH, KMEM and KLAS so, if you had any of these, you won't notice any problem, but they won't work on a system that doesn't have any of these sceneries installed, just GSX L2. They are not technically GSX jetways but, since they are SODE jetways we made, why not giving users of those sceneries the ability to use them everywhere ?
As I've said, we'll include them in the GSX installer as well, to minimize the chance anybody having problems with shared .INI files using them.