QUOTE(wizardfitz @ Mar 29 2008, 10:01 AM)

the 156 you can sign the 156k says do not write below line. that is the one you sign in front of them
but once you get in the embassy there's a line and if you didnt sign that 156k they will let you step out of the line and sign it... waste of time... anyways they will tell you (theres a booth to get inline with) to prepare all ds-forms and that dont leave any blanks... by then you can sign that... good luck!
(basing it from the last year's experiences among some of us here)