SharePoint 2007 and workflow!
Some good news! MOSS has RTM'd – that means by December 1st week, you should be able to download the release (Final) version a copy from your Volume License subscription! And Arabic is one of the first wave to be released, so look out for that too J
Regarding workflow – we've got a whole load of resources:
Here's a great screencast: https://channel9.msdn.com/Showpost.aspx?postid=197661 - it shows you how to create workflows using SharePoint designer.
A similar screencast, but this one shows how to create workflows using Visual Studio 2005: https://channel9.msdn.com/Showpost.aspx?postid=230212
ECM Starter Kit: https://www.microsoft.com/downloads/details.aspx?FamilyID=38ca6b32-44be-4489-8526-f09c57cd13a5&displaylang=en
Why the kit? https://blogs.msdn.com/sharepoint/archive/2006/06/07/621210.aspx
Other stuff: https://blogs.msdn.com/sharepoint/archive/tags/Workflow/default.aspx
And I'm darn sure there's a ton of other stuff out there too, so please keep looking!