Does any one know how to manually enter paychecks into quickbooks online from my desktop version of quickbooks that didn't transfer over?

I've got the information you need, david165.

If the paychecks you are trying to record are dated before the fiscal quarter in which you began Payroll, you'll want to check out this article: Set up a prior payroll. 

Otherwise, reach out to our Customer Care Team if you no longer see the option. Before doing so, please check our support hours here. Then follow these steps:

1. Click the Help icon located in the upper right-hand corner.
2. In the Help window, click the Contact Us button located at the bottom.
3. Enter your question and click Let's talk.
4. Select Start messaging or Get a callback.

For paychecks falling in this quarter (Q2), you can create them as regular paychecks. Here are the steps:

1. Go to Workers > Employees.
2. Click the Run Payroll button. If you have more than one payroll schedule, select the Pay schedule, then Continue. 
3. Select the bank from the Pay from drop-down list, Pay period, and Pay date.
4. Mark the check box of the employees you want to pay and enter the hours and memos. 
5. Click Preview payroll and then Submit Payroll.
6. You can print the paycheck and hit the Finish payroll button.

I've got this article for reference: Create paychecks in online payroll.

I'll be around if you need more help with QuickBooks Online Payroll. Stay safe.