How do you use 3dmodelfree in the Sims? RESOLVED

[murfee]

I know that there are creators who use the website 3dmodelfree.com --*somehow*--to create objects in TS3. My question is: HOW?
I went to the site, and they have a lot of objects there that I KNOW I myself downloaded as items (even here) from different Sims creators--toys, dinosaurs, animals (decor objects). How do I download one of their models and put it in my game as an object I created?
Help is GREATLY appreciated!

[HugeLunatic]

Start here Tutorials:TS3_Basic_HowTo_Mesh_Guide. But be warned many of those objects may have very high poly counts and may slow down your computer as they are not designed for Sims games.

[murfee]

Okay, totally stuck. Maybe I'm just too tech-stupid. I don't understand how this works: I went to the site, saw a model I liked, dl'd, and opened the folder. Now I've got a ton of .max files looking me in the face that photoshop, gimp, milkshape, simPE, sim3pe and object tool won't recognize or even open. So I went and got 3ds Max 2010 32 & 64 bit. It opens just fine there. I can see the object clearly.
How do I get it into my Sims game?
Do I need some sort of plugin? Where would I put it?
Sorry, but I'm just totally confused. :(

[HystericalParoxysm]

Do the tutorial as written that HL linked you to - make something simple like a table first. Then you'll know the basics of how to get an object in-game. You can then use 3DS Max to import the object, export it as an .obj, and import it into Milkshape to do the jointing.