First time tabbing ANYTHING. let me know what you think. Sorry for any mess ups. 
just giving it a shot

Basically, The Chords for the whole song are
Ab  C  C#  Eb

I find it easiest to do the bar chords, then just move it up a fret for the key 
change at the last chorus.

I'm fairly certain the bridge is the same chords, but reverse. listen to the song 
for the strum pattern.
bridge

(Chorus)
Don't go 
I just want you to stay 
Yeah 
Don't go 
We're almost out of days 
Yeah 
Don't go 
Keep that look in your eyes 
Yeah 
Don't go 
Tonight could be the night 
Yeah 

(V1)
We'll never know what it's going to be 
So stay right next to me 
We'll never waste a night 
Make everything bright 
I'd never see the sunlight without you 

(V2)
Never know what you could've had 
But this isn't all that bad 
Doesn't get better than this 
I don't care what I'll miss 
I never could resist being with you 

(Bridge)
To have 
The time 
We'll waste 
To the life 
We'll live 
We'll love 
And die 
And that's just why 

(Chorus)
Don't go 
Just stay here with me 
Yeah 
Don't go 
There' so much more to see 
Yeah 
Don't go 
What else can I do 
Yeah 
Don't go 
Just not life without you 
Yeah 

(V3)
It may be tough 
It may be hard 
We might not get that far 
Let's give it a shot 
And give it all that we got 
And never stop until we make it through 

(Bridge)
To have 
(Never know what you could've had) 
The time 
You waste 
(This isn't all that bad) 
You were right 
(Doesn't get better than this) 
You'll live 
(I don't care what I'll miss) 
And die 
(I never could resist being with you) 
And that's just fine 

(Chorus)
[ Lyrics from: http://www.lyricsfreak.com/j/jim+and+the+povolos/dont+go_20989760.html ]