I had a heck of a time with my A3000T also. I was able to get it working with an A3640 (mine is the rarer 040, not the common one you have) but had problems getting a CS MKII working. It ended up being jumpers. Plus I needed the infamous missing chip. The jumpers were not an easy thing. It seemed that different people got theirs working with different jumper settings. There are threads on here about it. If you are missing the missing chip pmail me. I bought 10 to get one. I will gladly send one or two your way.
Dan