SyncBo Uploading Problem

Hi Everybody. Iam Srinivas, working with SyncBo project. I had a problem with my Uploading Syncbos as follows :

I have created a project by Smart Sync wizard. I am able to download the data from server but unable to upload to server.

I already test the syncbo with MEREP_EMULATOR it successfully upload new records to the table. I am able to download the added data from my ME application.

But i am unable to upload the new records from ME SmartSync Appl.

if anybody solve the this problem i am very thanful to them.