#1

When you're in the DEEP JUNGLE. There is a section where you have to swing from vine to vine. After you get to the first (or only) platform, what do you do from there, there's nothing else, unless I'm missing something.

#2

When you're in WONDERLAND, when you go see the Queen about proving Alice innocent, where do you go from there and how do you get there? How do you enter the door?

It's been a while since I played it, so here goes:

1. just follow the vines. you'll eventually climb to the tree house

2. you need to find 2-3 ( can't remember exactly how many you need) evidences. From the queen's chamber (where alice's being held), go to your left to enter the forest.
Hint: check the flowers and eat the fruit that makes you big so you can hit the tree. If you can find all the evidences, you'll get a spell; Blizzard ( I think...not sure, but you definately get a spell). The last evidence is a bit hard to find.

You can find complete guide on gamefaqs.com and search for Kingdom hearts.

#1: IIRC, there's a vine on a big tree right in front of you. Climb up that.