I recommend updating to our latest release, a complete redesign of the plugin. Customization options abound in our new version, including finer control over manual placement, which would likely be the answer in this situation.
To help you transition from version 6 to version 7, please review this article: http://support.shareaholic.com/entries/24777372-Upgrading-from-Shareaholic-for-WordPress-version-6-to-version-7
You'll also find an accompanying article appended at the bottom to help you in understanding the new settings panel.
Now, each placement in your selected templates (Post, Page, Index, Category) are individual apps with their own configuration settings and their manual shortcode if custom placement within your theme is necessary to handle/work-around custom post types (which your forum generates).
Let me know if you have any further questions, and I'll be happy to help :)