file_get_contents error

my host(1and1) does not support file_get_contents function. i ve heard that i can turn it to curl. but i couldn't do that. how can i do that

i get always this error when i add a home or search a home:

* warning: file_get_contents() [function.file-get-contents]: URL file-access is disabled in the server configuration in /homepages/6/d239740050/htdocs/property/modules/home/home.module on line 656.
* warning: file_get_contents(http://maps.google.com/maps/geo?q=ayd%C4%B1n&output=xml&key=ABQIAAAAg_Bu...) [function.file-get-contents]: failed to open stream: no suitable wrapper could be found in /homepages/6/d239740050/htdocs/property/modules/home/home.module on line 656.