I thought you were referring to the Attributes Controller built into Zencart. The thread you referenced concerns mods and their compatibility with 1.3.9.
As far as I know, any information you find in the forums or Tutorials/FAQ will apply to the Attributes Controller in Zencart admin in version 1.3.9.
As for mods, the only ones dealing with attributes I've used are Stock By Attributes and Product Attribute Grid. Both seem to work fine in 1.3.9, though you need an updated version of the former
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