What I ended up doing was renaming those _Amarian spells to something else (_custom).  I'd suggest you do this in the spell list as well as the tech tree, then point your race to the new list under your race file, which should be sitting in the Races folder of MyDocuments/MyGames/Elemental.

I find that sometimes the game won't 'overwrite' the existing tree if the spells have the same name.  So it's best to refer to different names, that way you KNOW it's seeing your list.

Oh, and of course make sure you have the files in the Mods/Data folder.

I assume you also modded the Tech_Tleilax.xml as well?

i.e.:

<TechDef InternalName="Civics_Tleilax">

and

<Prereq>
            <Type>Tech</Type>
            <Attribute>Civics_Tleilax</Attribute>
            <Value>0</Value>
        </Prereq>

And have added "Tleilax_Tech_Tree" to your Race's Config file?

Looking at the files I ended up modding for my Custom race:

CoreTechs.xml was also modified (you'd rename it TleilaxTechs.xml), as was CoreFlavorText.xml (TleilaxFlavorText.xml).  I modded these for another reason, but it couldn't hurt for you to take a peek at them.  Remember to substitute Tleilax for Amarian in most places (except image/.gif and sound/sfx calls unless you plan to make your own).

If you want to call out your own race logo, CoreLogos.xml is your file.  I simply added a few lines pointing to my new logo, and saved it (under the same file name) in the Mods/Data folder.

On the Umberdroth, try saving the file under another name (example: RecruitedUnits2.xml), and see if that helps.

I'm sure others will chime in here shortly.

Upload the files, and I'll have a look.

How come you had to do all that extra work? Should that not simply be sorted out just with the basic tech tree code? And what do I use to upload files?

Edit: just tried and no luck my XML editor says there is an invalid at the top of the the sheet, anyways its gonna take me an hour or more to find it since errors like that are subtle and hard to find. Anyways thats beside the point. Thank you very much for putting in so much time and effort into this! I really appriciate it.

I use notepad too LOL Still fiddling with it, I dont know what my other thing to view it is being so fussy about. Everything looks right.

1.<?xml version="1.0" encoding="iso-8859-1"?>
^

I just got it to work, with just the three files (your race file, tech tree, and techs description).  Will upload momentarily.

Edit: Just PM'ed you the link to a .zip folder containing the files I was able to get working ingame.  I used your tech tree and race file as the base (copied from above), and simply renamed the Techs_Amarian file appropriately (with changes inside).  Let me know if those work for ya.

No idea what was broken, btw...

The Umberbroth tech isn't part of the Amarian techs as I remember, so if you are using my files, you may need to add it...

Don't lose faith man!  You are almost there!

Do check out Heavenfall's mod for ideas.  He's kinda an institutution around here.

Agreed.  If I have a choice between getting that editor first or the expansion first, though, I'm going with the expansion!

Definitely put a bug in the developers ear (you sorta just did), and let them know every so often you'd like a tech tree creator.  It can only make the game better!

Or maybe some modder type will build one.  That happens sometimes (not me though, I tinker with things; writing entirely new code is a little beyond me!).