Wireframes are stored in GRP files, and you need to draw the wireframes yourself.
From my tutorial:
QUOTE
Wireframes are stored in three different files. Normal large wireframes are stored in unit\wirefram\wirefram.grp. The wireframes used when units are selected in a group are stored in unit\wirefram\grpwire.grp. Wireframes for units in a transport are found in unit\wirefram\tranwire.grp.
So, if you know how to convert GRPs to BMPs and BMPs to GRPs, go along and extract those files, and play around with them. You'll see how it works. If you need help working out how to convert GRPs and BMPs, that tutorial I quoted just then might help:
http://www.staredit.net/index.php?tutorial=208Just so you know, the frame of the GRP that is displayed will be the unit ID. So, the marine, with unit ID 0, will have the unit\wirefram\wirefram.grp frame 0 for its wireframe. Probe, unit ID 62 (I think that's what it is) will have the unit\wirefram\wirefram.grp frame 62 for its wireframe. See the pattern? You can find out a unit's ID by selecting it in Arsenal III and looking in the bottom right hand text box.