I have 2 160px x 160px adverts that need to run in my sidebar. Is there any example of how to do this anywhere?

Do you know how to use text widgets? Go to Site Admin -> Appearance -> Widgets, click "Add" on the "Text widget" in the left column, and it should appear in the right column.

Then click "Edit" on the text widget in the right column, a window opens, paste your whole Text/HTML/Javascript code in there, click "Done" on the widget, then click "Save changes" at the bottom of the page.

To put a text widget into the right sidebar, choose "Right sidebar" at the top right, then click show, then do everything described above starting with clicking "Add" on the "Text widget" in the left column.

Forget to add that these are SWF files not graphics.

Don't you have some embed code? If not, see http://www.google.com/search?q=embedding+flash

All sorted. Thanks for the prompt replies.