I was thinking of making a custom pose for fun and I found this tutorial describing the process of making one with Blender. The problem with it is that the version listed for the required add-on is an old one. Do I actually need that version or can I just install whichever one is the most up-to-date?

I haven't made poses for a long time, but 2.79 is the last I used. Smug's geom tools for 2.8x and 2.9x (also works with newer versions) have rigs, but I've not used them for making poses, and not sure how, or if the pose can be exported for use.

The general rule with software like Blender is to use the version that the plugins or tutorials are written for - it's normal to have multiple versions installed for different usage. It's not the type of software that will prompt you to update it, each version is self contained and doesn't go out-of-date.

That version of the plugin was written for 2.67b and will not function in newer versions.
If you're totally new to the process, you might prefer the screenshots of the tutorial to match the software exactly.

LazyDuchess updated that plugin to work with Blender 3.x as an alternative. You may enjoy the feeling of that version more, as 2.79 was the last version to use the older UI and can be a bit clunky.

In short, only two versions are compatible with the CLIP tool and they both have pros and cons.

The good news is that you can freely try both and stick to whichever you prefer.

Thank you both! I'm glad to hear I can install older versions of Blender without having to uninstall the current one! I've already made a test pose, so I only need to export it in a format meant for ts3. Hopefully, I'll be able to open the blend file I saved in older versions.

Many of my tools actually run from the downloads folder, not C:Programs. 4 Blenders, 4 TSRWs, 3 S4Studios.

Hmm... I did not know that! I haven't bothered with poses in years, but might have to try that on 3.6LTS.

A small update for anyone who might be reading this in the future and having the same issue as me. I tried opening the blend file I created with version 5.2 LTS in 3.6 LTS but I couldn't, because the two versions aren't compatible with each other. To solve this, I installed v. 4.5 LTS to use as a kind of "bridge" between them, since, as I found out thanks to Google, the LTS versions of Blender are compatible with the immediately previous LTS versions, so that 5.x is compatible with 4.x and 4.x is compatible with 3.x and so on. Then, I was able to open the .blend on 4.5and save it. It opened and I exported the .animation file without problems on 3.6.

Does anyone know how I can tell where to pupils are on the rig? Unfortunately, it's just a textureless model and I can't tell where the eyes are facing.

Ok, I installed the version that the rigs I downloaded are supposed to be used in (2.67b) and they have textures. It seems that they don't appear in newer versions, so I guess I need to find a way to create a new rig on my own, because I don't wanna use such an old version. Does anyone know how to do that?

The textures are still there, the way that they're previewed just changed between the old and new UI layout and they need to be reapplied.

Select the eyes mesh, then navigate to the Material Properties - among the tabs in the bottom right, it's the red circle.
Under surface, click Use Nodes to re-enable the material and then click on the yellow dot beside 'Base Color'.
Choose Image Texture, then click on the small dropdown to the left of New and Open. This will show you all of the textures included with the project - the eyes are part of afFace_o.

If needed, you can repeat the process for the other body parts to match them back to their textures - the only thing I don't know how to reapply is layering the clothes on top of the skin.

Thank you! This was very helpful! I think I managed to reapply the textures but the legs look black. Not a big deal though, I was mostly interested in the eyes, cause those are impossible to align correctly without the textures.

I think I'm gonna keep version 2.67, because I can't find a way to make the eyebrows visible. The rig in 2.67 looks better anyway. It's kind of a shame though, because someone has updated the cliptool for v.5 (hopefully without Ai) and the eyebrows are the only thing keeping me from using it.

Oh that entire thread is 100% shameless AI.
And massively redundant at that, given that there are little to no features specific to TS3 work that change between versions 3 and 5. Overkill is an understatement, Blender 5 is built for film studio level work.

I may have butted heads with LazyDuchess in the past, but they're a talented developer and I would endorse their work 1000x over someone who hasn't participated in the community a day in their lives crawling out of the woodwork to hand out unvetted vibe code.

It is possible to layer textures in all versions but it involves some intermediate steps, it's not something I know the steps to off the top of my head.
It's probably more straightforward to just combine the textures themselves in an image editor, i.e. pasting the eyebrows onto the face skin.