do i need to put in something besides what has always worked or does this just not work in beta form?

APN on my 8900 is the same as before I started trying the 5.x.x.x OS's. I'm now on 5.0.0.190, and my APN is still epc.tmobile.com with all other fields blank -- and it works perfectly.

That's what I have as well but opera and beejive don't work when I try using that connection