If you have problems using the plugin, found a bug or have a great new idea for the plugin there are multiple ways to get support. I monitor all and try to give an answer as soon as possible. However, due to my daytime job, it might take a few days for a reaction.
There is a mailing list for the plugin. The mailing list is open to everyone - no SourceForge membership required.
There are three issue trackers for the plugin on the project page.
For all three a SourceForge membership is only required to monitor items. New items can be added anonymously.