if you upload 'em to photobucket or other image site, they normally have options for resizing them. Also, the easiest application I have found for resizing and other editing is the free Kodak EasyShare Software found here
http://www.kodak.com/eknec/PageQueri...requestid=3082
and Picasa 3 found here
http://picasa.google.com although I have not personally tried Picassa