After I sent my initial response I also wanted to check something.
This may sound like a dumb question, but when you get the emails are you clicking on the job links in the email? Or do you just go directly to the MSC or Sassie and log on and search for jobs?
I ask for 2 reasons:
1. A few companies who use Sassie don't always show the jobs through their main login/Sassie page. But if you click the link it's there. (Same thing could happen if you click the link and aren't logged on to the MSC, then try to log on.)
and 2. (less likely but possible) If You are going to a Sassie link you have saved, it is possible you are logging into the wrong MSC. A lot of companies use Sassie, and it isn't a one link fits all.
Hope this makes sense, and hope something helps.