N91 message tones solved!
There has been some confusion on the 3G forum as to whether it is possible to use downloaded ringing tones or music tracks as message tones! Well, danuk81 from 3G forum has posted a guide to solve this problem.
For those of you who don't know, this is how you do it...
1) Connect your N91 to your PC or laptop using its USB connector and select 'Music transfer'.
2) Open your N91's files on 'My Computer' and select 'attachments', and drag and drop your desired tone here.
3) Disconnect your phone, and go to 'Menu'> 'tools'> 'file manager'> 'attachments', and your file should be in here.
4) Select 'move to' from the file options, and move the file to 'sound clips' and then 'tones'.
5) Once you have done this go to your 'settings'> 'profile manager'> 'personalise'. Go to the message tone option, and scroll through the files, select your new tone, and 'voila' a brand new music tone!
If you want to check out the original post, or have any other suggestions on this topic, check out the 3G forum here.