Personally, I found the skill system for GW to be great. I love the idea of builds that you can change almost anytime.

I spent ages reading up on various skills and trying to create the "best" build I could.

Then I found this site:

http://pvx.wikia.com/

And I started hunting down skills + elite skills I didn't have.

It was very satisfying when you make it to hard-to-reach places, find some unique monster that doesn't spawn there all the time, defeat it, and capture it's elite skill.

Good times, good times.

Not to sound harsh, but I never had issue with points 1 & 2. Reading the two wikis helps (the unofficial was around before the official, content is similar but sometimes one is better than the other, so I use both):

http://wiki.guildwars.com/

http://guildwars.wikia.com/

I've looked at all those sites and have no clue how to get any other skills other than the skills (and secondary) of my main character. I have no problem with my main character, but it is my heroes that I don't know how to get skills for them.

To get all the skills, just change your secondary profession to each class and cap them all. Whatever you have capped will also be usable by your heroes.

http://wiki.guildwars.com/wiki/Hero_skill_trainer

http://www.guildwars.com/gameplay/gwnfeatures/heroskills.php

Seriously mate, The Google knows all :)