While are are ways to update your variables you don't need them. In layout mode, pull down the insert menu and review the options for inserting symbols. You can find symbols to insert for the record number, the found count and the total records in the table.
To get a record ID, it depends on exactly what you mean by that, but you can either put a serial number field on your layout or use a calculation filed define as: Get ( RecordID ). (These values are not the same, but are often confused with each other.)
Thank you much. I think it's time for me to re-read the User's Manual and discover other answers that should be obvious.