qsadium is meant to help you chat your adium contacts with a few quick keystrokes. This repository contains the necessary code but you shouldn't have to build it yourself - you should be able to find the plugin in Quicksilver's plugin directory (Note [2012-12-23]: This is currently wishful thinking but should soon be fixed).
Right now the source for this plugin is pretty simple and relies on AppleScript but fulfills the basic requirement: It reads contacts from Adium, adds them to Quicksilver's catalogue of items and provides a "Chat" action that will do the "right" thing.
This code is provided as-is, I don't have a lot of time for support. Feel free to send me an email and I'll try to respond - but no guarantees. There's also the Quicksilver development mailing list that should be able to help out.
For building the plugin from source I recommend you take a look at the Quicksilver plugin reference. You'll need some of the setup - such as building Quicksilver itself from source - but otherwise this repository should include everything required to build.
By downloading and/or using this software you agree to the following terms of use:
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this software except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Which basically means: whatever you do, I can't be held accountable if something breaks.