3 things I need

I need something where I can link maps together like like one map connects to another
I need something to make talent trees
and a quest system such as kill [x] amount of mobs or collect [x] amount of [y].

Have you ever heard of Google?

Edit: What is a talent tree?

WOW! You know, if you go to the link right beneath the "Resources" one you clicked on, you can find the "Scripts Database." I would suggest perusing that first. I know for a fact that there are some map-related scripts in there.

Wtf is a talent tree? I don't know if you're new here or something, but I found out that people here like descriptions of things. They also like it when the person requesting actually tries to find what they need before requesting it.

Just a hint of advice, I evented a battle system, stealth system, pressure switch, and lots of other things. You can easily event a "quest system" using conditional branches and switches and whatnot. A variable or two also might be useful for collecting things or killing a specific number of stuff.

In summary: Try stuff for yourself before asking for them.

Well, what do you need them for? There are scripts for ALL of those things in VX, and I'm confident that somewhere out there you'll find them for XP. 2k/3, you'll have to do it yourself.
You're on a forum, use it.