The AR Sales Tax Report shows Sales Amount, Taxable Sales, Nontaxable Sales, Taxable Freight, Nontaxable Freight, Taxable Tax, Exempt sales, and finally the Sales Tax Amount. Depending on the type of report (Detail, summary, etc) you would see a line with the invoice and date. The report doesn't show if you collected that amount from the customer (ie customer paid your invoice). The report reflects all sales tax from all invoices recorded since the last time the report was printed and the file was cleared.
Do you have some other report that I am not aware of? :)