Someone explain the rules of poker to me.

[unfrgvn]

I think the exact rule is site dependant. From the PP web site:
[ QUOTE ]
In this type of game, there is no limit to the maximum bet that you can make in any betting round. However, there is a minimum bet that is equivalent to the big blind.

The minimum raise amount must be at least as much as the previous bet or raise in the same round. For example, if the first player to act bets $10 then the second player must raise a minimum of $10 (total bet of $20). There is no maximum raise – you can raise as much as you want. However, if you wish to call a bet but don't have the chips to cover it, you'll be 'all-in'. At this point, you can only win the portion of the pot covered by your chips.


[/ QUOTE ]

I think because the all in was less than a full raise, all you can do is call. The other players would have been able to raise if they wanted, because they hadn't acted yet. If you had opened for 130, then the all in would have been a full raise and you could have repopped the callers.