[ChrisH09]

Why not just use your data cable that came with the phone? If you plug it in and select storage device or active sync it allows you to see the storage card or phone...(for phone and storage you need to select active sync). Thats how I put my ringtones on my phone...
The whole send from email to phone idea never really worked for me atleast with sprint. There servers probably look for files that end in .wav or .mp3. Also try a different email...