Trying to understand a transaction

I created a buying 3 BTC for 200 XCP order, and checked the transaction.

There are two Escrows: [color=rgb(0, 136, 204)][font=helvetica neue][size=13px]18DuqefxEr…[/size][/font][/color][color=#808080][font=helvetica neue][size=1em] and [/size][/font][/color][color=rgb(0, 136, 204)][font=helvetica neue][size=13px]19htBgLiSs…[/size][/font][/color][color=#808080][font=helvetica neue][size=1em] , click them and expand them:[/size][/font][/color]
Both of them have 0 BTC balance, but 0.0001086 BTC has been deducted from the selling address [color=rgb(0, 136, 204)][font=helvetica neue][size=13px]1BuMkY3wGb2f6axSt528uBfUT54EduDqjZ[/size][/font][/color].

My question is where did the two amount of 0.0001086 BTC go? Did they go to the counterparty protocol escrow themselves? But why can’t I look up balance in blockchain?

Why does it need two kind of exact 0.0001086 BTC but not other amount?

Also posted this question on bitcointalk forum.