It typically takes about two weeks after the close of a quarter for the new quarterly files to be posted. The quarterly reports archive is available under Reporting - Quarterly Reports on Demand.
The Quarterly Reports typically include the 941 filing as well as any state unemployment tax filings required for your company. The 4th quarter reports will also include the 940 return.
NOTE: If you are looking for W-2s and/or your W-3, you'll find them in Reporting > Year-End Reports On-Demand.