RenderBSPNode to ?? in tgea?

I'm trying to figure out how to convert RenderBSPNode from tge 1.5.* to tgea 1.8.*

RenderBSPNode in tge is used to construct the BSP tree for sorting translucent images. The closest thing I can find in tgea is

/// Builds the BSP tree of translucent images.
   void buildTranslucentBSP();

which I believe to be the same thing, but can't figure out how to use it.

Here is the function in tge:

inline void Forest::recursiveAddTree(SceneState::RenderBSPNode* pNode, ForestItem *fi)

I tried:

inline void Forest::recursiveAddTree(SceneState::buildTranslucentBSP(), ForestItem *fi)

but get an error:

c:\Torque\TGEA_1_8_1\forestEngine\engine\source\forest/forest.h(277) : error C2061: syntax error : identifier 'buildTranslucentBSP'
c:\Torque\TGEA_1_8_1\forestEngine\engine\source\forest/forest.h(277) : error C2059: syntax error : ')'
c:\Torque\TGEA_1_8_1\forestEngine\engine\source\forest/forest.h(277) : error C2143: syntax error : missing ')' before ';'

I get this wether I use the () or not.
The other thing that bothers me with this new code is that in the tge version, it is calling the texture on 2 different nodes. pNode and jNode. The tgea version doesn't have any of that code, so I tried adding them, but that didn't work at all. (got an undeclaired identifier error)
Does anyone have any idea how I can fix this error so I can remove around 100 error messages and move on? (vc just loves to spam the error messages)
Thanks in advance for any help.