Is it possible to upload a sound file and use it as my Ringtone or do I have to use one of the ringtones install on the phone?

Yes, you can use your own ringtones. Use PC Suite (http://www.nokia.com/pcsuite) to copy them over.

So I can only upload converted midi files through PC Suite, No True tones?

You can transfer any audio file format that the phone supports with PC Suite (Phone Browser).

So I can only edit a midi file to poly ringtone, that sucks.

Why did nokia not include the abillity to use true tones as with most new phones.
ah well I guess having a touch screen makes up for it.

Well I must be missing something,
Official Response From Nokia Customer Support:

With regard to your enquiry, please be advised that the Nokia 7710 supports the following sound formats, which can be used as ringtones as well:

-AAC
-AMR (NB-AMR)
-MIDI tones (poly 24)
-MP3
-RealAudio
-WAV

I still can only use PC Suite to edit a midi into a poly and use it, Anyone using a Wav or MP3 as a ringtone pls let me know how?

Did you upload it or was it sent to you by one of the Jamster Crazy frog things?

Just use the PC Suite's Phone Browser to copy AAC, MP3, etc., format files to your phone, and then assign them as ringtones on the phone.

I don't recall where they should be put on the 7710, but on S60 phones you put the audio files you want to use as ringtones in c:\Nokia\Sounds\Digital in phone memory or E:\Sounds\Digital on the memory card.

Ok, I Finally got it!

For Future 7710 owners wo have the same problem:

The Sound File you want to use as your ringtone needs to be place on the Device Memory (My Docs) and not in a Folder. Then it should work.

My Problem was I first had it on the MMC then I moved it across to the Devic Memory into the Sound Clips Folder then into a Ringtones Folder I made, neither worked. But after moving the MP3 file out of a folder and just into My Docs it works.