Help with html code

Hi

Before I start, please excuse my lack of knowledge regarding the correct language/terminology to use in this request for help!

Our IT Manager (with the assistance of a very helpful developer she found through this forum) devised a report in Zoho Creator using html - it pulls together lots of information from different forms within the Zoho database she created, in to a lovely looking health and welfare plan for each child at our school. There is a consistent field (child's name) within each of the forms which links all the data together.

She has since left the organisation and I have been asked to make changes to this report. Having never used html, I have managed to make most of these changes with the help of the internet. However, I was wondering if anyone could tell me if it's possible to add some code so that a date is produced on the front page of the report (Last Amendment Date) which indicates the last time any of the fields relating the that particular child have been updated? I have attached a blank example of a few of the pages from the report.

I also wondered how to stop the report showing 'null' when there is no value in the corresponding field?

Many thanks.

Cassy Ramos-Walton