Calling all Bloggers...............Help!

A lot of people think I know a lot about computers,

and for the most part, I can hold my own;

but I am finding myself Blogspot challenged these past

few months. I see all these great backgrounds, and

videos on other sites, and I can't seem to get past an

error screen after copying background codes or

trying to download new backgrounds. I did find on

one site that their code would not work with

Internet Explorer, so does everyone but me have Firefox,

or is there some other way around it?

And video is another story!

Anyone up to the challenge of walking me through the process?