Reserved are shares that you have put up for sale, they still belong to you but the system has separated them so you know how many are you have in the orderbook and to stop you double selling the same shares. It is normal for you to have 0 reserved share if you are NOT selling.

The dividends will be sent to your Bitfunder wallet, you will probably see in the top right corner a Balance of 0 currently but when the dividends arrive next week they will be visible up there. You can keep the BTC on Bitfunder or if you want to withdraw them you need to create a Weexchange account and link it up to Bitfunder.

Hope that helps.