I don't quite know what you're talking about. Can you take a screenshot for me?

Yep, if you copy over the GameMenu.res and the MainMenuOveride.res it will look the same as it does in zim hud.

Delete GameMenu.res in the resource folder, and MainMenuOveride.res in the resource/ui folder in Iscariote.
Then copy those two files from zimhud into your Iscariote folders.
Then, in your Clientscheme.res, add this into your fonts section:

"ZimFont11"
{
"1"
{
"name" "Roboto Regular"
"tall" "11"
"additive" "0"
"antialias" "1"
}
}

And after that, paste this into the bottom of the clientscheme to define the font (change the "9" to a number that is not being used):
"9"
{
"font" "resource/Roboto-Regular.ttf"
"name" "Roboto Regular"
}

Edit: You don't have to do this if you dont want the font. If you don't do any of that it will use a font already defined within Iscariote. Thats only if you want the Roboto font.

Being part of various competitive communities over the years, (Gears of War from 2006-2009 (I know...), Halo in 2010 (yes... I know...), Counter Strike from 2010-2011, and finally TF2 from 2011-present) I have dealt with all sorts of people. The community that really sticks out to me is the TF2 community. We're a relatively close bunch with all sorts of friendly and interesting people. In my eyes, the community is what makes this game so great. Honestly, what has Valve given us? If you can reply anything other than "next to nothing," I think you need to pay closer attention. That being said, what has the community done for it's own game? Sent teams from all over the world to play against each other at i49, developed MGE, DM servers, and various plugins. So, lets not forget what made this game great in the first place: you guys. The community. We don't need Valve as much as you may think.

This is confusing me.

Two things right off the bat to expect:
1. You're going to make minimum wage.
2. It's going to suck.
Obviously some jobs are better than others, but 99% of the time as a 15 or 16 year old (I'm assuming since this is going to be your first job) your options are very limited. (I'm 20 and I just finally got a job that isn't miserable). Not trying to scare you, but hopefully you find something you can somewhat enjoy.

I'm no genius, but wouldn't it have been easier just to set a max limit on interp rather than screwing everyone's class configs over?

YES.

http://teamfortress.tv/forum/thread/1291
That thread should have everything you need.

I preferred HexChat but ChatZilla isn't bad.

HexChat.

Your autoexec.cfg doesn't go in your custom folder. it should be in tf/cfg

Typically that happens when you don't shake it enough before use and/or do not hold it perpendicularly to the ground.

Updated the original post. Version 2 has been released.

Looks pretty good! Love the font and the color scheme. Gives it kind of a retro look.