There are some problems with your mapping. You have a repeating group for your submit - >my:myFields/my:Project/my:Overtime/my:OvertimeDetails/my:OvertimeAuthHours/my:OvertimeDetail/ - but then you have absolute XPaths to your fields. They need to be relative to the repeating group instead.
The field you have indicated for the ID is outside of your repeating group. The purpose of the ID is to be able to effectively relate each item submitted to the list with the XML node in the form. So, if you are mapping repeating data, you will want to have the field you are using for the ID inside that repeating group. This walkthrough was written for 4.2, but may help clarify the issues:
http://www.infopathdev.com/blogs/hilary/archive/2012/05/30/qrules-submittosharepointlist-walkthrough-for-v4-2.aspx
Can you take a look at that post and try remapping your data? If you get stuck, just attach your template you are trying to submit to a reply and I can help you out.