Posting pics here is the easiest thing in the world (easier than filling your gas tank, and cheaper)....
1) go to Image hosting, free photo sharing & video sharing at Photobucket
2) register for a FREE account.
3) upload a picture of you and your bike.
4) hover your mouse over the thumbnail, there will be 4 sets of code, select the bottom one , it will say IMG code next to it.
5) Left-click your mouse on the code
6) come back to the forums, open the edit signature page.
7) right-click your mouse, select paste. OR, use the hot keys CTRL+V.
8) let the world see your beautiful ride....
If you are still confused after this, we may have to do some one-on-one training on basic computer usage.