The very first option you get on the
photo upload page is
Choose a category to upload your photos to". Choose brindle, if your dog is brindle (or group if you're uploading photos of more than one dog of different colours, etc).
As for resizing your pictures, you need a software to resize them -
before trying to upload to Boxerworld. If you're using a digital camera, then the software that came with it will do the job, and you can refer to your instruction manual. If that's just not user friendly, then I'd suggest that you download a free software (there are many) from the internet. Two very easy to use free softwares are irfanview and easy thumbs - available for download respectively from
www.irfanview.com and
www.fookes.com/ezthumbs
Do note that there are two size requirements - the file size in kilobytes and the dimensions in pixels. You cannot upload a file that is greater than 100kb in size. And the best dimensions for displaying pictures online is 640x480 pixels.