Still the date format thing…

Dear experts,

First, I’m a newbie. Please have it in mind if you feel like willing to help me. Thanks.

As a newbie I’m having a really hard time trying to figure out how to change date formats.

I’m not an English native speaker and, thus, my blog is written in my mother language, Brazilian Portuguese. That’s why I need to move date formats from the default English notation (e.g. “February 7th, 2007”) to Portuguese (“7 de fevereiro de 2007”).

I’ve been able to translate days and months into Portuguese by editing the proper php file but now dates are being shown as “7th Fevereiro 2007”.

Now, the question: how can I get rid of that “th” and fill in the blanks with the preposition “de”?

Thanks in advance.