N620 ringtones in .mmf format needed

Hi all...

At last i could find a data cable , right software and succeded to change some ringtones with pclink software.
But i need some ringtones , good ones...(my phones performance is better than any nokia but they have better ringtones )
i also used midi converter polyphonic player changed some midi files and uploaded but still i couldnt find any good midi or .mmf ringtones...(club , house , pop , techno etc)

1 -Can anyone tell me where can i download some mmf or midis for free....is there and zip file that you can send here?

2- What is flash loading? As i am a newbie can anyone tell me what can it be done with this flash loading software..

I would be grateful if you can write me some information about these questions...

Thank you:)