Hi TJW
What Rhade means is that you firs put your work on a hosting site( i use IMGUR for that ) And that you Copie past from that to the Shipbucket.
For placing it here you Click on POSTREPLY left below on your schreen. than opens a schreen were you can write a comment.
Here you see above the place were you write some buttons to click on this is were you find
[*]
Personaly i use Img to place my work here you do that to place the linl in the middel of the 2 IMG words
Than you can look at preview to see if its work .
hope this is beter to understand
and dont be afraid to ask for help.
and by the way welcome to the side love to see your work.