Please provide me the code to add products using webservice

[JoelWebsites]

Hi I am finding it really to difficult to add products using a remote form..I can add products but the products but its values are not getting entered..Please see the screenshorts...

 

shop url is  http://opencart.website/joelp/

 

I am getting the below errors on the creation page..Please help me solve the issue thanks

 

HTTP REQUEST HEADER

DELETE /joelp//api/customers/38 HTTP/1.1

Authorization: Basic WjUzTVNNMjFKWjIyUldDRlpIUjdEQlZJM0RTUlJYWlo6

Host: opencart.website

Accept: */*

 

HTTP RESPONSE HEADER

HTTP/1.1 404 Not Found

Date: Mon, 05 Jan 2015 13:12:02 GMT

Server: Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips mod_bwlimited/1.4

Access-Time: 1420463522

X-Powered-By: PrestaShop Webservice

PSWS-Version: 1.6.0.8

Execution-Time: 0.013

Vary: Authorization,Host,User-Agent,Accept-Encoding

Cache-Control: max-age=0

Expires: Mon, 05 Jan 2015 13:12:02 GMT

Connection: close

Transfer-Encoding: chunked

Content-Type: text/xml;charset=utf-8

Bad ID

[JoelWebsites]

This call to PrestaShop Web Services failed and returned an HTTP status of 500.