There's a tutorial in the help section
, here's a link to it: Splitcoaststampers - Help
Details of what you are allowed are found in Site Posting Rules.
Signatures may contain a maximum of 3 off-sitelinks to blogs, shops, etc.
Promotional language and referral links are not allowed. Examples of promotional language include any call to action for a user to visit a commercial site, and include but are not limited to, phrases such as:
"Check out XYZ"
"Get XYZ at XYZ for less." Keep your signatures to 5 lines total. This will still give you plenty of room for fun and creativity.
No limit of number of SCS links as long as it fits into the line limit.
Keep signatures at or below a size 4 font.
No blinkies, pictures, animations.