How do I change copyright footer?

Hi,
I'm trying to update the copyright footer on my website. It says 2004-2009 right now. I want it to say 2004-2010. I've already looked in the includes/languages/english.php file and it has the (y) to automatically update the date, but it didn't update automatically. I had a web designer and she was the one who changed it from powered by zencart to my website name. I don't want to pay the maintance fees just to update this. I don't know where else in my files this could be to change it. Please let me know if you know of some other place besides the one I listed or if I need to do something to make the one listed work.
I have version Zen Cart 1.3.8a
Database Patch Level: 1.3.8
Thanks!

Searching in the tutorials in the link above right can provide you with solutons without having to wait
I searcged for change copyright
https://www.zen-cart.com/tutorials/index.php?article=131

I had a web designer and she was the one who changed it from powered by zencart to my website name
That designer should not have changed that as it is NOT powered by you as you did not write the code - It can be removed but you/they should not take credit for the code
https://www.zen-cart.com/tutorials/index.php?article=42

I'm going to try and change the years like it says there, but I'm not sure that it will work because the years are not there in this same place like it says right now.

About the copyright - We are not taking credit for the code. The template/graphics are custom and are my own so it's ok to change and I do not have "powered by", only my own company name and years I've been in business. It says it is ok to do this in the link you gave me and my designer knows that it is ok.

Thanks for the info, I'll try it out.

I tried everything said in the tutorials and I still cannot find where to change the date on the home page for the copyright. Does anyone know of another place this could be hiding in my files?
Thanks!

Url ?