Any particular reason for using amixer over alsamixer? I think alsamixer's ncurses-based interface is fairly easy to use. Left/right arrows to select lines, up/down to increase/decrease volume. 'm' mutes/unmutes. Escape should quit. There are other keys to do fancier things, but most of the time I doubt you'll need them.
Has it been a few days since I replied to your thread? Don't panic! I'm usually very busy and may forget a post if I'm extra busy (or it might just take me a while to be able to do a decent reply). If you still need help and are awaiting my reply after a few days, PM me about it.
When posting what errors you get, please give the full message. It makes helping you much easier.