Where can I find an firmware update for my Rigol DS1052E?

[m.Alin]

I've bought a Rigol DS1052E about a year ago. The current firmware version on my 'scope is 00.02.05 SP2. I'm sure that by now Rigol must have updated the firmware for this DSO, but I can't seem to find it anywhere on their site. How can I find out what is the current version of the firmware and download it?
I wrote to Rigol through their Contact form on their site, but they didn't reply yet.