The supplied SD card says it is 'Debian 6 for Linux.' Which I don't understand, as Debian *is* a Linux distro.
I assume that is a pre-installed Pi SD card. Sound's like they tried to apply a naming convention for "add-on" software whereas it's actually the full OS.
It the logo is just a bit off to the top left of the screen then that's OK. You may need to change your overscan settings, but that can be done once up and running.
Do you get any scrolling text on the screen? If not then first thing is to try a different power supply as an undervoltage supply is the cause of many problems booting the Raspberry Pi. Reading today's blog on the Raspberry Pi website - it sounds like there are some fake power supplies that look like the genuine article as well as the usual suspects of cheap generic supplies that don't work at the correct voltage.