Help can't install please

[saltsprung]

I just switched from 32 bit to 64 bit. I had windows 7 and ubuntu 10.04 all nicely installed.

Then I discovered that I accidentally installed it on the external harddrive.

Then when I unplugged the external hd and tried to reinstall with the ubuntu cd, I just get a flashing white line upper left of the screen.

I tried to go into the bios to change things, but got lost and no luck yet.

So now I have two problems:

1) How do I get it to boot from the cd

and...

2) How do I get all my pictures and videos (of my children) back from the external hd?
Is there a program that does that with linux?

Thank you in advance

[saltsprung]

Just changed it in the boot menu

[Mark Phelps]

SO ... are you OK now ... or do you still need help?

[saltsprung]

Yes, I'm okay now, thank you.