output from report

Hi,

I am really new in sapscript and I followed tutorials, manuals ecc in this morning I tried to write my first helloworld sapscript; really simple:

1) i made a form z_test with a text in main window where i wrote: Hi &user&

2) i wrote a z_report where i set variable user = sy-uname and then, open / write / close form ..

But when launching program, output is open, but I can see only "Hi" and no name following.

What am I missing ?

thanks

gabriele