This is a quick-and-dirty solution, and probably not how I'd do it in a
production app, but you did say you were in a hurry. You can set the
ControlSource property of the text box to an expression that uses the
InputBox function to prompt the user for the text. Something like ....

=InputBox("What do you want in the header?")

There's something that doesn't make sense here.
I can't find your previous posts so sorry if this doesn't help.

Put a text box into the place where you require it. Click on Text Box on the
Tool Box toolbar. *Don't just use an existing Control that might be linked
to a field*. Give your text box a name that ISN'T the name of one of the
fields in your report.

In the text box type your question after an = and between box brackets

=[What is your name]

When the user fills this in, his name will appear in the report.

If you don't want the report to open unless the user fills in his name, then
you will put code into the Report's OnOpen event

It will say

If IsNull([YourTextBoxName]) Then
'substitute the real name of your text box
DoCmd.Close
End If

Note that all this does is put a name into a box, it doesn't filter the
report, but you didn't ask for that.

Evi