If you are using a default theme such as Greek Yogurt, you will need to clone the theme into a root folder, rename it (so as to create a new theme), then edit the footer.php element.

If you are using a marketplace theme, the procedure may be the same, but first contact the theme developer and see if they have built in anything easier.

You can sort out the copyright with:
http://www.concrete5.org/marketplace/addons/auto-copyright/...

You may also be able to adapt a template to remove the c5 link and text.

As a general pointer, the topic to search for in forums, howtos, docs etc is 'Whitelabelling'.

Need to know which theme you are using.

Can you modify the php files?

I'm using Greek Yogurt. Not sure how to modify the php files. I know…I maybe shouldn't have attempted this, but like to expand my skills. I'm a pretty quick learner, but sometimes I need to get a step by step walk through.

At this point I'm willing to hire someone to "fix it"!

thanks!

Path to file: Site - concrete - themes - greek_yogurt - elements - footer.php.

Lines 26 and 27.