Ok, I know I'm gonna look like a complete idiot for asking this, but how do I change the favicon for my site?

I am using XOOPS 2.3.3 English with the tomandjerry theme which I have adapted. I made my own favicon and uploaded it and everywhere (admin menu etc) shows the new favicon except the main site! I uploaded this favicon and overwrote every example of favicon.ico I could find in my files, but still it shows the default theme favicon (have checked from several computers at several locations so it's not browser cache).

It's driving me nuts! Can someone please put me out of my misery? lol

SOLVED: It's always the way ... spend hours looking for the problem, then post for help and find the answer a short while later. Doh!

For some reason the theme has a favicon.ico and favicon.png, which I changed, but there is also a icon.png file which serves as the favicon! I don't understand why it was done that way ... but that's the solution. Change the icon.png file as well, and it all works perfectly.