try setting your ports to something else, maybe your ISP is limitting it (lately, many ISPs are doing so :-( )
also have in mind the stuff about credits. three days is definitely not enough time to have nice downloads in the ed2k network. you normally haev to wait about two weeks. but well, luck plays a big roll here too

about the remote queues, obviously, nothing we can do abou it. about getting disconnected, that's unluckily some clients which do that: they wait, upload few kba nd disconnect. this wait they get credits on you and many ppl. but those clients are leechers and are banned once they are discovered. but well, while they aren't banned, they f*ck around as you can see :-(
finally, have in mind that aMule for mac is still in beta development (allthugh in a quite advanced status already). So any reports are wellcome

thanks
Greetings!