Include image at the Head of Easyblog (Vintage) - 2

Hi,

I asked it before and Mark helped: http://stackideas.com/forums/including-image-at-the-head-of-the-blog-easyblog

BUT, after upgrade for the new Easyblog version, the Head dissapear because it made the CSS files change back for default (and then I should do it again). Is there a way to make an override to the CSS file so in the next time I upgrade it doesn´t dissapear (head)?

Thanks in advance!