gtk for Irix > 1.0.6?

["John C Atkeson" <John C Atkeson noaa gov>]

  Hello, I am trying to find a recent version of the Gimp ToolKit for Irix, 
greater than the old version I have, 1.0.6.
  
  So far I've seen references on the web as high as gtk 1.2 for Irix but no 
luck finding an actual place to download it.  Even SGI's own site doesn't 
seem to have it.  
  
  Does anybody know of a link to a *recent* version of gtk for Irix?  
  
  Thanks if you can help,
  John