He asked me to test it, and I installed a fresh Taverna install and the new plugin. After that, I used the MyExperiment plugin to download one of the CDK-Taverna workflows Thomas has on MyExperiment, and tuned it a bit to use some local input instead of the database. I took some screenshots while at it, and will use those now to talk you through the installation of Taverna and the CDK-Taverna plugin.
Taverna 1.7.2 can be downloaded from this download page, but I took the Linux version from the SourceForge download site. I cannot detail the OS/X or Windows installation, but on Linux you simply unzip the downloaded file, and you're ready to go:
$ cd taverna-1.7.2/ $ sh runme.shPlugin Installation
Plugins can be installed using with the Plugin manager which can be accessed via the Tools menu:
Using the same Taverna Plugin Manager you can also install the MyExperiment plugin that allows you to search, browse, preview and download Taverna workflows from the MyExperiment website from within Taverna itself. I installed the plugin, and then used it to search for CDK workflows (and downloaded a QSAR workflow):