There are 2 issues being addressed in the beta Build:
1) Corrected an issue in activation/serialization that caused an error to occur when accessing the CSS Menu Writer Wizard in Dreamweaver 8. Dreamweaver 8 users should now be able to activate CSS Menu Writer V2.
2) Corrected an issue that prevented anchors in links from being included in menus.
The first issue is specific to Dreamweaver 8.
the second issue can be encountered in all versions of Dreamweaver.