HELP! URL masking mod_rewrite

Hi, i need some mod_rewrite help for url masking.

Well, i have this link affiliate link which is

And i want that content to be seen at my website

And whenever someone acts on the website, lets say for example, they search for a hotel, then in the affilate link it would be like this

"http://travel.ian.com/hotel/searchresults?cid=327497&currencyCode=USD&searchType=DESTINATION&userCity=dallas%2Cnull%2Cnull&searchParam=47CC53D2-98A6-486B-8106-8783749CA665&travelDetail=[20100804-2]2&propUnavail=null "

Code (markup):

But instead of that, i want visitors to be able to see this link

I know this is possible how? because my competitor website does it.
@ hotels.dallas<DOTcom

Do a search there and u will see what i mean.
note that cid=THENUMBER is the affiliate id ofcourse.

if someone could help me then i would be really happy.

 

The hotel.dallas website does not use masking... seems like API.
Check if your affiliate provides some kind of API to let you get results.