Lipra,
remember that this scenery is made for FS9. While it may work in FSX most likely there will be anomalies of some kind. Probably most noticeable with MESH and/or shorelines. FS9 elevations and shorelines are not the same as in FSX plus with RTMM scenery installed you have to have ORBX PFJ scenery area as well which will alter FSX defahttp://forum.mistymoorings.com/Smileys/default/cool.gifult shorelines and elevations from default FSX as well so with three different possible scenarios if it works at all is mostly a matter of luck actually.
As for colliding with another object this is due to the fact you do not have crashes turned off in FSX. It is your choice but I will advise you quite strongly to disable crashes because that function of FSX is not very effective due to the invisible crash boxes around scenery objects being oversize much of the time and even grass in some ORBX scenery will cause the airplane to crash when crash detection is enabled. Best advice is to disable it. You know if you crashed or not, a matter of personal honesty there. To have a restart is at least annoying and unecessary IMHO.
Because Maloney's Tavern is FS9 RTMM can not offer official support for the scenery, Jeff may have some personal information that could aid you.