I found BitMinter to have the easiest to use client for a beginner. I'm pretty tech savvy but trying to figure out the appropriate flags wasn't something I was overly interested in when all I wanted to do was mine so I landed there and I am still there after almost a month. Their client only allows you to mine with the BitMinter pool but again it was very easy and I'm happy with it.

I used a Sapphire 5770 clocked to 925 Core I was getting approx 200Mh/s on it. This was under Windows 7 with the latest drivers directly from ATI (I'm not sure which version anymore)

I'm also unable to view any of your photo links. Is it a protected album or something?