Julie
Your designer used a theme called, Thesis. Thesis has it’s own set of files including the a custom folders where your designer placed your current logo.
The thesis tutorials can be found here:
Here are two options to update your header:
1) Your current logo is stored at: http://www.juliedanieldesign.com/wp-content/themes/thesis/custom/images/Header3.jpg
If you know how to use ftp, you can upload a new header called ‘Header3.jpg’ to that folder.
You may be able to do the upload from your web hosting software. Or, if you are a windows user, you can use ‘filezilla’ to do the file transfer. If you are mac user, you can use ‘fetch’.
or option 2:
2) From the wordpress dashboard:
– Select ‘Media; Add New’
– Upload your new header image
– Once you’ve uploaded the image, grab the url- it will probably something be something like
http://www.juliedanieldesign.com/wp-content/uploads/2009/12/newfilename.jpg
– Go to ‘Thesis Options; Custom File Editor
– Make sure you are editing the ‘custom.css’ file
– change the entry url(images/Header3.jpg)
to the new url so something like:
url(http://www.juliedanieldesign.com/wp-content/uploads/2009/12/newfilename.jpg)
But, a big word of caution – if you don’t get the syntax just right with Thesis, it can hose your site.
Try to back up the theme files first – this would also require ftp.
Good luck.