Tell me how to play this hand from the BB ($50 PLO)

[Markusgc]

It's my first hand at the table, but I noticed the button was pretty aggressive while waiting for the BB to come my way.

I'm new and this is a situation that baffles me. Tell me what I should've (or shouldn't have) done and I'll probably be more able to ask better next time. Thanks - and sorry about the converter. If anyone can tell me how to convert Prima hands, that would be great too. And to further exasperate the situation, I bought in short - $18. Button has about $50, I can't recall the other players, but UTG+1 had > $100.

> SB posted small blind ($0.25)
> Hero posted big blind ($0.50)
> Game # 1,122,054,233 starting.
> Dealing Hole Cards(K [img]/images/graemlins/heart.gif[/img] 2 [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/heart.gif[/img] )
> UTG called for $0.50
> UTG+1 folded
> MP folded
>Button raised for $2.25
> SB folded
> Hero called for $1.75
> UTG called for $1.75
Pot is ~ $7 (less rake)
> Dealing the Flop: 4 [img]/images/graemlins/diamond.gif[/img] 10 [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/diamond.gif[/img]
> Hero bet for $4.50
> UTG called for $4.50
>Button called for $4.50
Pot is ~ $20.50 (less rake)
> Dealing the turn(J [img]/images/graemlins/club.gif[/img] )
> Hero checked
> UTG checked
>Button bet for $20.50
> Hero folded
> UTG folded
>Button mucked
>Button wins $40