Html in content?

[Sora]

Hi, hopefully I can explain this well enough.

I'd like to use html in the content updates. To cut a long story short, I'd like the image of a character on every page (eg. Character X on the welcome page, text beside him, Character Y on the extra page, text beside him, etc.). However, whilst the layout works fine on a testing html document, I can't actually get the script to accept the img src tag on the different pages.
Is there a way to do this? So far, I've only been able to do it on the adopt page.

If I haven't explained it well enough, let me know. Thanks for any help.