Try UPTCHD and UPTCDT.  That is the timecard header and detail for U.S. Payroll.  If you are a Canadian employer, use CPTCHD and CPTCDT.

what tables do I need to use to pull Timecard information after it is posted?

For earnings and hours you can use upchkd and upchkh.  It also contains deduction and tax information.  To get a list of tables and fields, from within Sage HRMS run the Data Dictionary report (Reports > System)

I suggest you run these reports separately (HR then PR).  If you select both, HRMS has no rhyme or reason on the sort of the files!