Please lend some advice Please...

[Gisher]

Yep, you guessed it, greenhorn here. I am really excited to make some mods however, this forum is a bit overwhelming to the new player. I have installed via Steam, SH IV and the version is V1.3. I have downloaded TMO v 2 and 2.1 and used the help provided on MOD Installation Step by Step. However, when I try and load the game it hangs and I get a lot of error messages. I then tried to install the 1.4 patch. It wont work after I load it into the game folder.
Can I go from 1.3 to 1.4? If so, how do I uninstall with Steam?

Also, what would be a list of must have MODS that can be played with 1.3?

Help, I am very excited to play this game, but want to have it modded nicely too.

Thanks in advance.