Interesting glitch - I had 32 of the 40 monthly free listings left. I've just listed 20 or so items, and they've been deducted from the 100 free listings rather then the 32 monthly ones I had left - thought eBay would have made me use those up first!

So (unless they realise and fix it!), even after this weekend's promotion ends, I'll still have the 32 monthly free listings left!