How to create Accounts with Campaign lookup on CRM through API

How to create Accounts with Campaign lookup on CRM through API

I post this XML but cannot relate the account with the campaign(id=12802000000056065).
Is the any mistake?
<Accounts><row no=\"1\"><FL val=\"Account Name\">new_company</FL><FL val=\"SEID\">12802000000056065</FL><FL val=\"SEMODULE\">Campaigns</FL></row></Accounts>


Account is successfully created but it is not related with the campaign.

Could someone please help me.
Thanks, in advance.