25184 xml implementation (with rpc?)

Hi, I need to integrate into my turistic site the xml flux mentionned here ([login to view URL]) in order to generate a list of hotels. In the documentation you can see examples of code and list of functions. The goal is to build various regional directory (example: [login to view URL] [login to view URL] ) and subdirectory (city). The script will be placed in a subdomain. I have a dedicated server. My site is in italian language (I use charset=iso-8859-1). Consider if possible a "caching" option. Waiting your suggestions and your purpose, thanks!