I start with Tracy's correction, then make a few suggestions of my own:

Hello, Hello

Hey ! 
These days I don't sleep very much. I am participating in a contest to win a trip to Korea and I want like hell to win. To win I need votes.  Currently I'm ranked third. Only the first place person can win the trip. That's why I need many, many votes. I'm asking for people to vote for me, but very few do. 
For many days I have asked people, "Can you vote for me please?  You have to... blablabla", but I rarely get an answer... So sad. For me, to go to Korea is a dream. I really, really want to go there. 
Anyways I hope my English is correct ! :o 

See youuu ! :) 

(Oh, btw, can you vote for me please? xD You have to go on this page: http://apps.facebook.com/221717994554871/?app=5559ef6e9f&app_data=%7B%22ref%22%3A%22a9dff%22%7D "like" the page, and select the empty little square(?). Then you click on "participate". Be sure to allow the Facebook request. When you see the ranking, then you are done ! Thank youu.)

Bonne chance, and I hope, bon voyage!

Hello Hello

Hey !
These days I don't sleep very much. I am participating at a contest to win a trip to korea and I want to win like hell. To win I need votes. Actually (Currently?) I'm ranked 3rd. Only the first person person can win the trip. That's why I need many many votes. I ask for people to vote for me but very few do it...
For many days I have asked people "can you vote for me please ? you have to..." blablabla and I rarely get an answer... So sad. For me, to go to korea is a dream. I really really want to go there.
Anyways I hope my english is correct ! :o

See youuu ! :)

(Oh btw can you vote for me please ? xD You have to go on this page http://apps.facebook.com/221717994554871/?app=5559ef6e9f&app_data=%7B%22ref%22%3A%22a9dff%22%7D "like" the page, and select the empty little square(?). Then you click on participate. Be sure to allow the facebook request. When you see the ranking then you are done ! Thank youu.)