You need to start beryl manager,otherwise you will have no themes or window borders,then you'll think you have a problem when you don't!!!
To start beryl manager automatically add "beryl-manager" to the start up programs and you're done.
Still have problems...use synaptic,uninstall the beryl entries then re-install,start beryl manager from the command line"beryl-manager" and you've got wobbly windows,themes,fades etc etc.
Many people have this problem and it's all down to not starting beryl manager,maybe it's not mentioned in the instructions you got.
As edgy ships with AIGLX you can install just from synaptic with the right repositories enabled,and the correct graphics driver,you don't need the Beta driver and it can cause problems when maximizing windows,though with the constant updates to beryl this might not be the case now.