Hi! The contests are open to anyone. Visit the thread where the contest is being held, see what the rules are, ask any questions (dumb ones are OK!) and then make up a card.
If you want to post a card with a picture in the link, use this code:
Card Page is the web page of the card.
Card image: right-click on the card and copy IMAGE
To do side by side the following can be done... (Repetition - Use different cards for each.)
To do multiple rows just start writing a new line... (Separate Lines - Use different cards for each.)
I wrote all that down so I don't have to remember it.