Page not found errors

[R D S]

Hi,
I have a website with an admin area, which requires a log on.

I have moved some stuff in the directories on the server around and now I
can log on but then I only get one successful click before page not found
errors.

If I click refresh on the admin page I can click on a link, page shows up
but on the next link page not found.

Its as if it isnt holding my password or something.
The links look OK, the files are in the right place, stumped.

Can somebody try to help me understand what is happening here?

Cheers,

Rick