can anyone tell me the correct attachment locations?

can anyone provide a list of attachment locations please? when i try to attach a model to another model it never shows...

Attachment Point Names:
overhead (floats over the unit's head, but doesn't sway with the head as it animates)
head (sways with the unit's animation)
chest
origin (usually at the base of a unit's feet)
hand
foot
weapon (for heroes)
sprite (for buildings)
medium (for buildings)
large (for buildings)

Attachment Point Modifiers:
left
right
mount (for mounted units)
rear (for quadrupeds)
first (for buildings)
second (for buildings)
third (for buildings)
fourth (for buildings)
fifth (for buildings)
sixth (for buildings)
rallypoint (for buildings)

Example attachment point names: "overhead", "hand", "hand left", "foot right mount rear".

first, second, ..., sixth also apply to the Sphere ability I think.

Not all models have all these attachment points. It is determined by the model itself. If you have the know-how, you can export the model, convert it from .mdx to .mdl, and open it with notepad to find out what attachment points it has.

Some of the attachment points are more detailed, such as hand,left and hand,right (for most humanoid models) or chest,left and chest,right (for many mounted or four-legged models). Some are even more elaborate or special.