Skills are a bit tricky at first.
Have you tried reading the Help documentation on my or Paul's site? You have? Not terribly helpful, passed a real bare-bones definition.
I have created three new files to be found here:http://ua.reonis.com/index.php?topic=3322.new#new
Later, I will add them into the Help documentaiton, but for now you can get right to them.
These annotated files for baseclass, class and race are a couple or several entries in each database with comments by me that should help explain what is going on. Honestly, I have found using the SkillAdj scripting key word much more difficult so didn't realize that the basics are hard if not understood.
Skill = // first term is always the name, second term is always initial value
SkillAdjAbility = // first term is always the name of the skill to modify, second term is always an ability name, third term is how to modify the value, followed by 25 values corresponding to ability score values of 1 to 25, respectively
SkillAdjBaseclass = // first term is always the name of the skill to modify, second term is always the name of a valid baseclass, third term is how to modify the value, followed by 40 values corresponding to each of the 40 available levels, respectively 1 to 40
SkillAdjRace = // first term is always the name of the skill to modify. second term is always the name of a valid race, third term is how to modify the value, fourth term is modification value
"valid" means in one of the databses
"how to modify value" is +, -, *, /, %, \= (add, subtract, multiply, divide, percentage, set equal to)