User is trying to run the Budget Comparison report, but it does not show any amounts under the Budgeted column. The user has already created estimates and associated them with projects.

This happens because the Budget Comparison report is based on budgets assigned to projects and not estimates. You need to create budgets and assign them to the projects for the report to work. In your case, you can convert the estimates to budgets and then the report will reflect the correct amount. Check CORE Help Center for more on that.