Hi I just updated my firmware to 5.0.0.230 and everything worked fine until I tried installing msn/fb/bbm whenever I try contacting the site to dl the programs it says "Download failed." and when I go to details it says 907 Invalid COD :/
I had that message when I tried to install Docs2Go. Turned out I needed to uninstall the previous version in order to get D2G v2.0.
Possibly the move to 5.0 brought over the previous version? You might want to check in DM and see if the apps show up there, then delete the previous versions and try again?