hey everyone, i need some help here please because i'm not really sure what i'm doing to say the least.... i downloaded a few of the civil jets today from this site and i copied and pasted the main folders into the FS9/aircraft folder like the readme says but they are not showing up on the list in the game for me to select them.

what is really wierd is that the first one i downloaded about a week ago showed up but everything else i've tried lately is NOT and i know i have them in the right folder.
also, i was told that i can see my frames per second by pressing shift +z but when i do that i do not see anything like "fps" , all i see is stuff like:
59* 58.46' W141* 3746' ALT 1786 ft MSL HDG 045 93
KIAS Wind 333/00 Mag
^^^
and i'm not even sure what all of that means.lol. i'm guessing the first part is my location then altitude and wind speed (???) but what does stuff like MSL/ HDG /KIAS/ Mag,etc. mean ?
probably dumb questions, i know, but i'm new to all of this.
thanks in advance.