wireless booster

[PODfreak]

aight.....my fiance has dial-up at her house....i know....BLOWS....but just a week or 2 ago i had my lappy over there and i started grabbing a wireless signal from somewhere and held a steady connection most of the time

unfortunatly her lappy can barely hold a connection for more then 10sec

soooo....i started looking around at boosters and...well....i'm not a comp dumbass but i really dono what i'm looking at or how this will all work....or even whats good

didn't know if someone had some knowledge....or could spend 5min on google to help me out with this problem

i dono if i need to get her a card w/ an antena jack, if she has one on her comp, or if i can get a USB thingy....i saw one of those

or maybe there's an antena u can plug into USB


pretty much don't really wanna spend a ton more than like 50bucks if possible

thnx for your help in advance hopefully

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edit
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i think this is what i'm looking for -
http://www0.shopping.com/xPO-Hawking-Wireless-G-USB-Network-Adapter

but i'm not possitive

what i really like is -
http://www.ccrane.com/antennas/wifi-antennas/super-usb-wifi-antenna.aspx

Buffalo had one for 30 bucks....but i guess there's some kind of legal problems that started in dec.