I don't know if your phone is supported or not, it's up to Yahoo! to decide. If you go to this website:
http://uk.mobile.yahoo.com/go/phones...cVKQ3T9tAcJYou can either choose a network and then phone or put your mobile number in and it sends you a free text message, with a link you have to go on, then on that link it will tell you. (I think the text message is better because I don't this the website show a complete list of phones.) Obviously you will have to go on the link with the GPRS on your phone.When you do you, you will get something like this on your phone:
http://uk.mobile.yahoo.com/go/installIt shows the installation of the jar file being installed onto your phone.The phone gets the jar file direct from the Internet through GPRS
uk.mobile.yahoo.com