Pathing inside of scroll panes

i have a few buttons inside a movie clip inside a scroll pane component.

like this

BJbutton > thumb_mc >myScrollpane (component and instance name) == on _root.

scroll panes work by referring to the linkage id of a movie clip. therefore myScrollpane refers to the linkage ID of “thumb_mc2”, the linkage ID i chose for thumb_mc

in a frame script, im trying to create a button function for BJbutton that resides in this scroll pane.

since scroll panes refer to linkage IDs, how do i path to this button?

myScrollpane resides on the root. myScrollpane refers to movie clip named “thumb_mc” with the linkage id of “thumb_mc2”.

BJbutton is inside thumb_mc.

i thought it would be
_root.myScrollpane.thumb_mc.BJbutton - but that doesnt work

niether does

_root.myScrollpane.thumb_mc2.BJbutton

any ideas? i can send FLA via email - too big to post here.