GET java application FREE SMS Cellity freeSMS.
http://wap.cellity.com
Only need some gprs data transfer payment. It supports about 1500 words sms! When someone send sms by that soft to you, It'll send an hint of that sms & a download link if you are not registered with them. & After registration it makes alert call for waiting sms on your account when you're not logged on. Try it..