No support – ever

You have to remember that as much as we love plugins, and free plugins;

1. Every plugin was created for a specific need

2. After a few years, there could be many plugins that fulfills that needs

3. After a few years, many themes may have similar functions integrated into theme

4. The plugin designer may have been doing this on their free time and may now have a full time job, career, family, or even passed, and no longer has time for the plugin

5. The plugin may not be compatible with recent version of WordPress or PHP

A little research and there’s always at least 2 other plugins that have been recently updated to do the job.