To do that , simply set that element to the value you want in the WYSIWYG form editor, for example if you want to set a default value for a textfield simply type that value in the text field, for radio group simply select the option you want.

Note that this applies only to version 0.6 and beyond , JForms 0.5 doesn't support embedding

• Download and Install JForms plugin
• Publish JForms plugin from Joomla! plugin manager

• Identify the ID of your form

• Open the article you want the form to appear in
• Type {jform=X} where X is the ID of the form you would like to embed
• Save the article

Note that this applies only to version 0.6 and beyond

1. Make sure Joomla! E-mail settings are working “Try the (Forgot password) function to see if it works”
2. Enable Mail plugin on your form
3. We'll assume we have a form with 5 elements , Name, E-mail, Country, Telephone Number and Message
4. Edit “Administrator Notification Message Format” (from your mail plugin settings) to use placeholders, Placeholders are formatted like {FIELD=FIELD LABEL IN UPPER CASE} with everything enclosed in curly brackets ” {} ”

Example
Dear Administrator , {FIELD=NAME} has just created an entry , S/he is from {FIELD=COUNTRY} and his/her telephone number is {FIELD=TELEPHONE NUMBER}, His/Her message is {FIELD=MESSAGE}