[away3d] UV mapping on extrude surface?

[Joshua Granick]

Hey guys,
Does anyone know how to specify UV mapping across an extruded surface? I'm  
using Maya. Basically I used Mesh > Create Polygon Tool to generate the  
cross-section of an object, then I used Edit Mesh > Extrude to give it  
some volume. However, if I open it up with Edit UVs > UV Texture Editor,  
like I'm used to, it only lets me select a UV for the cross section, which  
results in the extruded section having a big blob of the same color.

Anyone know how I can adjust a map of the other angles, or do I need to  
convert the object somehow?

Thank you!