Follow up questions are best posted in Post A Answer below the original question. Then those that respond can review the entire issue from the beginning when composing an answer to your question...
user or account names, date and time data are entered automatically from field options set on those fields. Open Manage | database | fields, find the field and double click it to open field options. Then click the auto-enter tab to see what options were specified for that field.
In a script, you can do much the same thing with the Set field step to set the value returned by different get functions (Get (accountName) , Get ( UserName ) , Get ( currentDate ) ... etc.), but I don't think you need that in this starter solution.