I am trying to get a short easy to play not hacked scenario for unlimited adventures. I am getting better at the games but just want to play a fun scenario to get the hang of the game. I only play Not hacked scenarios for now.
I played the orig scenario and Brave and didn't like them.

Any scenarios someone can recommend?

One of these may fit the bill:
Eveningstar
To Catch a Thief
City of Gold
Paladin 1: Restoration/Gundahab
The Bell and The Staff

The last one is the best of this lot, IMO.

Eveningstar module is great but when I get to graveyard I run away in fear and don't know what to do next.

In combat or as an event?
What co-ordinates?

EDIT: checked the editor, and it seems there's a 50% chance of being too scared to enter the graveyard. You just need to try again.

This module eveningstar is excellent. I am having a blast in graveyard. Thankyou :)

I need help something is wrong with my stats!

I have two Lv2 fighters that don't gain 1 thaco yet. Is this a bug? I also have a fighter thief lvl 3 who hasn't gained any thaco as well. I am used to baldurs gate and icewind dale so I know the classes pretty well but I am unfamiliar with this game series. Can anyone help.

These gains follow the first edition rules, which are irregular in their handling of THAC0. In particular, under the SSI interpretation of 1st edition rules, fighter THAC0 improves only at odd levels, but improves 2 points at once when it does improve.