Wireless advice needed

[alboking_uk]

hey guys just wondering if someone could give me some advice on this.
I moved to a new area so i left my net provider cos they cant get their services up and running yet in area.
I have been lookin around the area and searchin with my phone for open wifi's and i was able to find few of them but the problem is that they are a bit far from my house and i cant get no signals with my laptop.
i was told from some friends to buy some high gain antenna and adapter and i would be able to pick up signals from far away.
i bought this so far 1000mW USB 54M 5dbi Wireless Network WiFi Adapter 802.11B/G
and now all i need is a good antenna.
can someone recommend me a good one plz so i can pick up long range signals

thanks guys