What is the url of the success page after sending a GV or looking up a coupon?

Somehow, even with a fresh install with no addons or anything, my store is returning a 404 Page Not Found error after filling out the "Send Gift Certificate" form and hitting "Send" or after looking up a coupon code (which was a real code--I double checked). So I was wondering what the response URL is when it works correctly, because that may help me troubleshoot. Maybe I'm missing a file or something.

If anyone has any other ideas as to why this is happening, I'd appreciate hearing them as well.

On redeeming a GV the URL is:
/index.php?main_page=gv_redeem&goback=true&gv_no=abc1234

On sending a GV to a friend you first are taken to:
/index.php?main_page=gv_send&action=send

to confirm it then to:
/index.php?main_page=gv_send&action=doneprocess

Ajeh:

On redeeming a GV the URL is:
/index.php?main_page=gv_redeem&goback=true&gv_no=abc1234

On sending a GV to a friend you first are taken to:
/index.php?main_page=gv_send&action=send

to confirm it then to:
/index.php?main_page=gv_send&action=doneprocess

I'm having the same problems with sending a gift certificate but in looking for the "missing page" I'm not seeing gv_send but am seeing gv_sent (with a t)....is this just a mistake or should there also be a gv_send that I'm missing?

gv_sent is a file for the Admin and gv_send for the Catalog store ...