AlwaysSil3nt

So, I've been really into AotBT lately. I get on and try to join a friend's server and it says I'm missing a part of the Carpenter's blocks mod. I delete my files, and re-download the pack. I try to join the server to see if the problem is fixed, and it says all the files that make mods compatible with each other are missing. Any ideas for a fix? Thanks in advance!