I have a text box and text inside the text box...also a button beside it.
|Enter your email here|
I want the button to redirect he email entered to my email adress, Anyone know how to do this in FC??
Also when the user clicks on the text box i want the "enter your email here" to disappear, so the user can enter thier email address.
You can't send email directly from the end user's computer, so you will need to have your site send the text box's contents back to your server and then have the server send you an email. Talking to a server requires writing a little bit of code, using a separate tool such as Flash Builder.
Here are two threads with links to a bunch of tutorials for doing this:
To have the text disappear, you'll need to add a little bit more code in Builder. Something like this:
<s:TextInput id="email" text="Enter email..." focusIn="if (email.text=='Enter email...') email.text=''" />