Is the above page for seat reserve on JRline.No, the page only let's you look up whether there are still vacancies, but reservations are not possible.
Do anybody know the English translation of this?No, there is no English version.
The only English website for online train reservations available is the following, but it is possible to make reservations for only a few trains:
http://jreast-shinkansen-reservation.eki-net.com/pc/eng...And the following website is a non-official service:
http://www.jet-lag.org/As a JR pass holder, do i need to pay extra if i reserve seat?No, seat reservations are free for Japan Rail Pass holders. You won't be able to use the jet-lag.org service for free reservations, though.
What will happen if i reserve seat but do not turn up?A seat on a potentially crowded train will remain vacant, causing inconvenience to both the railway company and other travelers. Please respect your reservations!
If you happen to miss your train, there will be no penalty, though.
If the schedule in the Hyperdia did not show seat reserved, does it mean that i can just walk up the train?Most trains have some cars with unreserved seats that can be used without a seat reservations, i.e. you can just walk up to the train. There are a few exceptions, such as the Narita Express on which seat reservations are mandatory, but Hyperdia does not explicitly show whether a train requires seat reservations or not. The way to find out: select "Unreserved Seat" under Charge fare. If the result shows "Reserved Seat" despite you selecting "Unreserved", it means that the train requires seat reservations.
or i just need to fill in the ticket application form? As show here: http://www.geocities.com/leinsd/ticketform.htmlWhen making seat reservations, such a form can speed up the process, but they are not mandatory.
5) Where can i get the ticket reservation form?Japanese versions are available around the ticket counters, but the English version is usually not available. You could print out a few and bring them to Japan.