Hi Keith,
If you're pretty comfortable with things so far, try "Visual Basic 2010 Programmer's Reference" (
http://www.vb-helper.com/vb_prog_ref.htm). It's less tutorial than "24-Hour Trainer" and contains a huge amount of information. I would work through it, experimenting with the topics it covers to see what you can do.
It will be harder than "24-Hour Trainer" but I'll still be here to help if you need it.
Eventually you may want to branch off into more specialized topics such as database design ("Beginning Database Design Solutions"
http://www.vb-helper.com/db_design.htm) or database programming, WPF ("WPF Programmer's Reference"
http://www.vb-helper.com/wpf_prog_ref.htm), phone development, game development, etc. I would work through "Programmer's Reference" or some other harder book first, though.