We just posted a VB version of the WF hands on labs. You can find them here: http://www.microsoft.com/downloads/details.aspx?familyid=2e575633-e357-4ee7-aaff-34138f00e830&displaylang=en. Enjoy!
Update: When you download the exe file and extract it, you will get the VB.Net sample in a VB folder under \Labs. There’s a type in the download details box where it says C#. We’re working to fix this issue. For now, download the HOLs and enjoy them!