550131 simple text replace script

This is a simple script which I want this as a desktop application. I need it done now so please only bid on it if you can do it immediately - thanks I have a list of towns and keywords, the script will replace all of the town names.i.e. Paste in List Of Towns: aldeburgh woodbridge bury lowestoft ipswich Paste in keyword phrases (XXXX or different token if you prefer, will be replaced by town name) caricaturist XXXX XXXX caricatures wedding caricaturists XXXX XXXX wedding caricature party caricaturists XXXX XXXX party caricaturist output:- caricaturist aldeburgh aldeburgh caricatures wedding caricaturists aldeburgh aldeburgh wedding caricature party caricaturists aldeburgh aldeburgh party caricaturist caricaturist woodbridge woodbridge caricatures wedding caricaturists woodbridge woodbridge wedding caricature party caricaturists woodbridge woodbridge party caricaturist caricaturist bury bury caricatures wedding caricaturists bury bury wedding caricature party caricaturists bury bury party caricaturist caricaturist lowestoft lowestoft caricatures wedding caricaturists lowestoft lowestoft wedding caricature party caricaturists lowestoft lowestoft party caricaturist caricaturist ipswich ipswich caricatures wedding caricaturists ipswich ipswich wedding caricature party caricaturists ipswich ipswich party caricaturist