I would like to reopen this thread.  I need VisualCron to create folders and move files into SharePoint.  I have followed all the steps you described previously, such as running the VC service under my account, mapping a drive, etc.  Still doesn't work.  When using the create folder task, I simply receive the access denied error.  When using the Execute task, where I call a VBScript, it executes the script, but it does not complete.  However, when I am logged into the server on which the VisualCron service is running, I can execute the script manually and it works every time.  When the script is executed by VisualCron, it runs under my account - same as when I run it manually.
I would prefer to be able to do these things directly from VisualCron and avoid calling a script - any ideas here?