I received a certificate issued by Verisign and imported in my Keystore
and I can successfully sign the applet.

But I *also* need to be able to export the certificate to a file so
that it can be integrated with the build process. I am unable to do
that.

Here is the directive I use in my ant build scripts.

<signjar sectionsonly="true" storepass="passowrd" keypass="keypassword"
storetype="jks"   jar="${FEA}" alias="certificate alias name"/>

This command works only from my machine. but I need to be able to allow
different developers and build engineers to build and sign the applet.

I am not sure what value should i be using for
keystore="" attribute. I tried giving it a certificate file name but
that wont work.

any help will be greatly appreciated.