I don't know how they got out but I can't just sit on them. A link was posted on twitter around 11pm BB time on Friday and as you can see there are 25 pictures from Media Day (which was July 22nd) of the inside of the house. You can see the media folks playing the game and yes, as we heard, Rachel can be seen in at least one picture. Enjoy - discuss - and all that.
As a quick follow up - here is the quick and dirty of what seems to have gone down.
One of the folks at We Love Big Brother announced on Friday that his media day pictures were uploaded and ready to go fo Mondays release. Someone at the site "SurvivorSucks" did some digging and found the pictures on the site - I assume but guessing the possible URLs. That person then published the links or pictures. The owner of ihatebigbrother then snagged them and posted them on twitter and I, not knowing they were already backed up, grabbed copies as well and posted them above.
Now you know the rest of the story.