We've had a few issues where members who have used the website tinypic to upload images have had their images replaced by nude pictures. If you have used tinypic in the past (either here or elsewhere) you may want to check the images.
We would advise people to use other image hosting sites rather than tinypic as they seem to allow other images to overwrite old ones.
Thanks for letting me know. I was trying to post some pictures via this hosting site, but I never knew they had such issues, so now I will look up an alternative to Tinypic for photo hosting.