I love DSLibris, it's a brilliant homebrew. If you mean firmware, then AKAIO is the best to go for. But aren't there already threads for this?

 

If you go onto the NDS Homebrew sub-forum, there's a big list of must have Homebrew.

Thanks for taking the time and effort to search for that topic, it's not like that is quicker than making a completely new thread now is it?

/thread.

Edit: Try searching in Google for "beup live", you'll find hundreds of other people have this problem too. You'll probably find the fi for it aswell if you take 2 seconds of your time doing something for yourself!