Can someone please link me to the Wiki instructions on building a TIN file from LAS files using V8i SS4 with Geopak? I have been looking everywhere.

Regards
What I see is that you are using Microstation, and not GEOPAK, which is the software that you are being shown that you should use.
I hope my opinion is useful for you.

Carlos Mario Velasquez.

Yes, I have Geopak app for Microstation:

Then I can pull out all my Geopak tools from there. I use a bunch of different workspaces for different clients, but I think there is only one version of Microstation installed on my computer. Some of the workspaces use InRoads and some use Geopak. I do not have Open Roads.

I do not have Power Geopak or InRoads either.

I think you need Geopak or Inroads to work with .las files to create a tin

I do have Geopak, I just don't have the Power pack. I just have everything I have listed above. But I use Geopak every day to generate cross sections and profiles, I just never have needed to create a surface TIN until now. There has to be instructions to create surfaces using the set-up that I have somewhere. If I have to have more software installed, I can request it, but I think my company decided not to do the Microstation Power Pack or Open Roads.

I do have Geopak, I just don't have the Power pack. I just have everything I have listed above. But I use Geopak every day to generate cross sections and profiles, I just never have needed to create a surface TIN until now. There has to be instructions to create surfaces using the set-up that I have somewhere. If I have to have more software installed, I can request it, but I think my company decided not to do the Microstation Power Pack or Open Roads.

What you showed earlier looks like the plain MicroStation Terrain tool.
Make sure that Geopak is activated. I don't think the civil tools will show up if it isn't.

If your Task dialog isn't already open, you can open it by going to Workspace -> Preferences -> Task Navigation and click on "Show Main Task Tools".

When that opens, you *should* see a list of task tabs. Look for "Civil Tools". These are the SS4/OpenRoads-type tools that go along with the regular Geopak tools in SS4/SS10. That should show you another list of task tabs, including things like "Analysis & Reporting", "Horizontal Geometry" and (what we really want to see) "Terrain Model". Click that tab, and you will see a couple of dozen terrain-type icons.

The first tool is "Create From File" and one of the file type options is going to be LAS files.

Civil Tools does not show up after activating Geopak

.

I see you have a customized workspace (The TDOT menu item isn't part of vanilla Geopak).
I betcha that's interfering with the task menus.
Unfortunately, I don't know the fix, but you might search on here for "custom interface".