How do I go about transferring all of my pic's files into the folder that I just made for them?

All uploads work in the same way:
File Manager or FTP applet or any third party FTP program.

If you only have one or two, you can also go through the bravenet website manager -> file manager -> upload files. It's a bit quicker than loading the ftp module through bravenet, but you can only select individual files.