How can I access stats/analytics for my stream?
Not at this time with LiveWebDJ. We have intentionally left that alone since http://www.getmarci.com does it so well.
is there any way that encoded art be displayed while streaming/broadcasting?
We only provide live stats on your station's dashboard. We do not keep historical statistics as generally your stream hosting provider will have a control panel for you to log into that includes detailed historical stats. If you are in need of a stream host that can provide you with this check out our sister company http://iCastCenter.com