First, you can use the same amygdala atlas in MNI space. Download the MNI versions of those atlases following the instructions in this previous thread :
[
afni.nimh.nih.gov]
You can transform those masks you want from the MNI atlases to the TT_N27 space by using "adwarp -apar ~/abin/TT_N27+tlrc -prefix dset_mni -dpar dset+tlrc. -force". That applies the same transformation used to move the N27 dataset to Talairach space to the atlas regions.