umm go to www.tinypic.com and
upload your image. if you scroll down a bit..you'll see something like
this..
copy [ctrl+c] the address from the space next to where it says "Link"then go to settings and then next to signature box type the link the tag given below
then using this tag
between the two bracket sets, paste [ctrl+v] the address you copied.
hehe. hopes this was more helpful =)