Look at the  Manual!

The battery charges via USB connection to a computer.

The Bloggie has a function for formatting memory cards.  The cards you get with the camera should already be formatted, but you may want to re-format, just to be sure — including making sure all files from previous users are deleted.

You can transfer files directly from the Bloggie to the computer via USB.

I used a card reader instead, and found that erasing files from the SD card via the Mac was not enough — I had to reformat the card each time it filled up or the Bloggie would insist that the card was full.  To reformat on the Mac: Applications > utilities > disk management