It takes them awhile to update anything on the status page, it doesn't mean they didn't receive your application. Same goes for UC Irvine and USC so far....
Hi,
My status page said it was complete about two days after they received all of my rec letters/secondary. I would call them to make sure they have received all of your stuff. UCSD is actually really good about updating that page.
Good Luck!
A month? That's a bit long! You might want to contact them. They don't take a long time to send out secondaries and once they receive your secondary, they will send you an interview invite almost right away. UCSD and UCI are good about these things! USC, on the other hand, very flaky school! You'll have to nag them.