I have quite a bit of experience in modding FSX: SE but I have no idea how to install a mod patch, for example, The CRJ900 there is a patch for it and I don't know who to install it.
If there are any answers, the would be greatly appreciated!
I have to guess that this is the one you are talking about.
There is a read-me that comes with it.
If it doesn't explain how to patch then just put the download into the correct main folder.
I guess that would be panel, if it asks to overwrite then do it.