All I am new to Inventory in NetSuite and trying to do a bunch of reporting for backorder items. What is a good resource for reports/searches on this subject. The standard reports are useless.

Saved searches are probably the best route. There is a lot out there in SuiteAnswers that could help you out. Example: SuiteAnswers ID 68354 shows how to pull a basic search of all items with a back ordered quantity

Thank you!