Zune accsessories

[sigmundf]

I bought a 2 cables for my Zune 30GB
so that I can download from my computer to the Zune some songs
but it does not work, is there anything that I can do to make these cables work ?

can you recommend a decent cable & AC adapter that would work ?

2) I have by mistake downloaded on my Zune on the computer some music
( not on my Zune 30GB player)
how do I delete it ?
please advise step by step

please advise on all

thanks
sigmundf