… Haven’t seen your email so far (no worries if you didn’t get round to sending it – but I thought I would give you a heads up in case it disappeared into the void).
I should have caught this when you first posted. Better late than never, however. If you are using default permalinks – it looks as though you are – then you will run in to problems.
Are you able to use pretty permalinks, such as a standard /%postname%/ pattern?
OK – so hopefully you’re able to workaround that (I know some hosting environments aren’t conducive to pretty permalinks but they are a minority and hopefully that doesn’t affect you here).