【求指导】自学与新浪微博开放平台对接，运行新浪提供的SDK报错

【求指点】自学与新浪微博开放平台对接，运行新浪提供的SDK报错
环境：Win7（x64）、Wamp集成（PHP5.4.3+MySQL5.5.24+Apache2.4.2+PHPMyAdmin3.5.1）
新浪PHP SDK版本：最老的那个（weibo-oauth-class-with-image-avatar-06-29-update）
目的：学做简易的微博，目的与新浪微博开放平台链接上
问题：将一些" "WB_AKEY" "WB_SKEY"已申请，"WB_CALLBACK_URL"路径也改过了
-----------------------------------报错内容------------------------------------------
( ! ) SCREAM: Error suppression ignored for
( ! ) Fatal error: Call to undefined function curl_init() in C:\wamp\www\PHP100\PHP100-sina\weibooauth.php on line 1687
Call Stack
# Time Memory Function Location
1 0.0008 250576 {main}( ) ..\index.php:0
2 0.0060 610864 WeiboOAuth->getRequestToken( ) ..\index.php:8
3 0.0060 611320 WeiboOAuth->oAuthRequest( ) ..\weibooauth.php:1575
4 0.0070 615504 WeiboOAuth->http( ) ..\weibooauth.php:1674

-------------------------------index.php部分代码------------------------------------
session_start();
//if( isset($_SESSION['last_key']) ) header("Location: weibolist.php");
include_once( 'config.php' );
include_once( 'weibooauth.php' );
$o = new WeiboOAuth( WB_AKEY , WB_SKEY );
$keys = $o->getRequestToken();报错行
if( strpos( "http://localhost/PHP100/PHP100-sina/" , 'index.php' ) === false )
$callback = 'http://localhost/PHP100/PHP100-sina/callback.php';
else
$callback = str_replace( 'index.php' , 'callback.php' , $_SERVER['SCRIPT_URI'] );
------------------------------weibooauth.php部分代码--------------------------------------
function getRequestToken($oauth_callback = NULL) {
$parameters = array();
if (!empty($oauth_callback)) {
$parameters['oauth_callback'] = $oauth_callback;
}
$request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters); 报错行
$token = OAuthUtil::parse_parameters($request);
$this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
return $token;
}

===============================================================================================
function oAuthRequest($url, $method, $parameters , $multi = false) {

if (strrpos($url, 'http://') !== 0 && strrpos($url, 'http://') !== 0) {
$url = "{$this->host}{$url}.{$this->format}";
}
// echo $url ;