I want to change the default skins of my antclick platform.

I am trying to translate all the skin and text messages into spanish. I already did my homework changing the message.en file and translating all the skins I can, within just one weblog.

But I can't change the default skins of the all antclick instalation and as soon as I create a new weblog, then it comes with the standard, as shipped english skins.

Please - is there anyone with any ideas, suggestions if there is a solution for?

Thanks in advance.