Update on Post #76:
I got through to PSA by phone this morning. Waited on hold for about 18 mins. I asked why my order wasn't showing up on the dashboard, allowing me to check the order status. The customer service rep confirmed my order and listed the items on it, confirmed my shipping address, etc, after I provided the order number.
She said the reason my order doesn't (and won't, according to her) show up on my dashboard is because when I ordered, I wasn't signed into an account. Since it was my first order through PSA, I created my account at the same time the order was confirmed. However, it's still considered a "one time transaction" and won't be linked to my new PSA account. Future orders I make will show up, provided I log into my account before selecting the item and going through the order process.
Anyway, that's the explanation she gave me. Seems weird that it wouldn't link to the account that I created by ordering, but I guess if that's how their site works, well... okay. Good to know, at any rate.
FWIW, the CSR was helpful, quick, and polite.