Membership – Register Custom Fields

Hello there ,

how r u guys ,

i need an answer as soon as possible for this issue ,

i installed membership plugin ,

and i installed a SMS Phone Plugin , wich is , i can send sms to all my members when they write their phone number in their profile ,

the issue here is , that SMS plugin , shows the Mobile Number Field in profile members /wp-admin only , it doesnt shows in Registration Page ,

thats the plugin http://wordpress.org/extend/plugins/smsglobal-sms-plugin/

so can you tell me please how can i edit Membership register page and fields so i can add the Number field in Register Page and also add it to Membership Account Page ?

Thank you very very much ,

kind regards.