ah yeah sorry those brackets are to be replaced with the values you want to use...
[float
] means type in the x-position of the object as a floating point 90.52 or whatever
same for y and z
[int:id] is the object's id, i believe entering 0 should auto select a new value using MySQL if that field is set to auto increment
[float:heading] is the rotation for the object, which determines which way it will face.
Easiest way to get this info is, login to the EQEMU server, #zone to the zone u want it in
walk to where you want it to be placed, and type #loc
use those values for x, y, z, and heading