To sidechain the Waves C1(sc) compressor, you need to have both signals going into the effects channel where the VST is insterted (so in Cubse you would have to use a Group channel). If you want to still be able to hear the sidechain signal, you'll have to use some sort of send arrangement, or thewre might be an option I've not used on the plugin....

Also, the sidechain input and the signal you want to be compressed must be panned to opposite sides (for example, kick panned hard (100%) left, bass panned hard right).
Then you just have to set the key mode on the C1 to L->R.
You'll also want to use some sort of centering plugin too, because without it, your bass/pad etc. will still only be coming out of the channel you originally panned it too.

Not much good if you wan't a sterio output though....
Wow, one post by JS on May 15th!
You really did blow this out of proportion with the amount of posts on this topic. Way to be helpful and mature. Oh, thanks for PM me and stating the childish thoughts in your head of your opinion of me. Because as you know a message board on the internet is real life.

And yes I did read this post, and to me it's still not as good of a solution as DBaudioware and TC Works.

Thank god you're not the moderator for this board. But it's too bad that you think you are, and feel you have the right to be a complete tosser, to not just myself, but many other people on this board.

Just a word of advice, more female and less email. Maybe then you'll be better adjusted and balanced to deal with people.