I do not have a solution unfortunately because we too purchased QBO Advance and the corresponding t-sheet program for these same reasons and have been very disappointed.  Not only can I not get the job costing section to work, but I was also informed by our payroll setup expert that I can no longer point my payroll items to specific (or any) cost of goods sold categories I used for years in desktop.  I now have to figure out how to run reports to gather labor costs, then enter journal entries on every payroll to move the labor to the cost of goods categories.  and that long process only solves my P&L issue. 

The whole reason we moved to QBO Advance was that they advertised the job costing capabilities.  

I will keep checking this thread to see if anyone has found a way to make this work.  If not, I may give up and move my client back to the desktop. I am really grateful I only moved a single client as a test case as the process has been a nightmare.