From what you've said I think I won't have much more luck connecting it than you. If I could program it using the charge cable connected to my laptop I'd probably buy it (although maybe not for 30€) - but I don't think that's possible.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I have tried for month now and nothing. So, yes I can sell it to you. 30€ + postage costs from finland?