Contactpage.swf not working fully

i have a flash site. in it i call external swf’s. the problem is the contact form. when i view contactpage.swf and fill out the form, it works; i get the confirmation. when i fill out the contactpage.html it works. i get the confirmation but when i fill out the form via index.htm which indeed calls the external contactpage.swf the email gets sent but the confirmation doesnt work. therefore the email has been sent but know one knows its been sent!! why is this and how can i get over this?