Hi...
first of all... newsflashes area is actually a module-position, this means that you can place a new user-module inside this area (module-position) or any other position(left-right top ...etc...)
in that user module you can try to implement your code (tinymce with
html-mode) , you may find useful the articles below :
http://wiki.elxis.org/wiki/Smart_text_bannershttp://wiki.elxis.org/wiki/Google_AdSense_custom_modulePs. you can create a new module and assign it at any module-position by visiting administrator>>modules>>sitemodules and click
new at the right upper corner!