Our ListPipe Content Generator plugin is only compatible with PHP5 and above. This is due to an issue regarding a change in PHP5 to support a command called 'try' that we use in order to create the handshake between your ListPipe account and your external WordPress blog.
If you have experienced a site-wide error when activating our plugin, notably a "syntax error, unexpected { on line 28", then you are likely running PHP4.
Don't worry; we have a solution...
For those of you who may be having trouble, we have created a special PHP4 plugin that bypasses the 'try' command so that you can connect to ListPipe from a PHP4 server.
Download the ListPipe PHP4 Plugin
We do recommend that you upgrade your server to PHP5 instead, but we realize this may not always be practical.
PS: Our ListPipe Content Generator plugin version 2.5 is fully compatible with WordPress version 3.0.5 (we just haven't updated the reference yet).