Worklflow: Display multiple line at Email body

Hi Frds,

I done know workflow, and didnt found any link which help me in this.

I need to display internal table contant which contain multiple lines in email body ? Now following doubh i have.

1) WF is already created, so where i needto include/add my code which prepare final table.

2) how can we display internal table in email body

3) how can i display text at the top of the list which can be hide if no entires found in internal table.

Note: I tried to code in BO method so that table contant pass to WF container but unable to create table type parameter in BO.

Please advice.

Thanks

Imran