Changing images in default Beez5 and Beez2emplate

Sir
Many thanks for your continuous support and precious advice. I must say that I can manage with the templates now. I was really very confused in the beginning and did not want to go through Joomla's beginner's guide which consisted of 259 pages.I followed your advice and it really helped me.

Sir I wanted to

Sir I wanted to change the existing banner/image with new ones. Kindly advise
With much thanks

we do not provide support for products that are not our own.

Sir
Does this mean that I should not use the default Joomla's templates?
This leads to the login form not appearing in my pages. Is there any free Joomla Login Module download for me? Kindly advise. Much thanks

Sir, I used the extended menu but nothing comes.

Kindly advise

we do not provide support for products that are not our own.