I have read a thread about putting in header and this location /includes/templates/classic/images/logo.gif
has been quoted as to where the header is.

So my question is to insert a header into my template as would I go to /includes/templates/custom/images/logo.gif this being that I have a template and not the original green or whatever.

Also the header I have made I have saved as a j.peg is this OK to use as a header please.

Thanks