Aren't there plenty of places on the Web where you can post your pics?
For instance, one of our MEPIS regulars used http://photobucket.com/
to display screen shots (as a slide show!) of a sub-distro he's working on.
BTW, if you ever have large "Code:" or "Quote:" blocks, they can also be externalized:
Might make your (& anyone else's) posts easier to read & easier to answer.