Hello Shagufta,
The best place to get most of your queries answered is our Studio wiki at
http://studio.123greetings.com/wiki/.
There is a wealth of information available therein and you should be able to find a solution to all concerns in a couple of minutes.
Additionally you can refer following FAQ link especially for our Flash card guidelines:
http://studio.123greetings.com/wiki/ind ... GuidelinesHowever, if you have any specific and additional query, feel free to write us back at
studio@123greetings.com and we would be happy to assist you.