Thanks i was looking for something like that.If you are changing your nickname and anything else using no$gba, then when you close the emu, the settings will change back to the way it was before you made any changes. To change the settings in your firmware and to save them, you will either have to change the settings in your real ds and dump it again, or use an editor program like this one.
As for your last question, we assume the development is still ongoing unless the author state that he has stopped working on it.
As i have a DS but dont have any means of dumping the bios myself and to my knowledge every bios is the same apart from the specific info you enter yourself like name and dob i didnt see the harm in using a bios someone else dumped for me and if truth be known i bet quite a few people on here have had the bios dumped by someone else for them. also please dont call me a pirate, i have never downloaded or brought copied software, dvds or music as i fully support developers, if its worth watching/listening to or playing its worth buying.as far as i know you cant get the latest version since the donation page is dead and we have zero info on if an update will happen, i prefer to consider it dead unless some info comes up.
that point number one, point number two is that you arent legally using the emu unless you are using the emu with the bios you dumped yourself.
point number three, the you cant change settings in the bios, you can find a seperate app that does it for you.
point number four, to have the settings saved if look into the menu bar theres an option to save settings, thats how you save the settings of the emu
point number five, do your research and search the forum before making a thread as i remember there countless threads that solve all your issues and that you need to know the rules and that we dont support pirates and technically you are one since you arent using your own bios... until you do dont expect any more support here