Hello Sherri,
Posting time and disbursements updates many many files. Your best option is to restore the data prior to posting.
If the posting journal was not updated properly, print the Time Summary report for the date range to see which WIP Transactions were duplicated. You will also want to print the G/L Transactions report to see if it has the duplication.
Once you have determined which transactions were duplicated, you will enter and post reverse Time and reverse Disbursement entries.
If this does not correct all of the Statistics, you can use import to correct statistics for the working and responsible staff members, the files, and the staff classifications involved. As you can see, restoring the backup really is the best option.