Some PHP and cURL Help?

Please move or delete this topic if it is inappropriate or wrong placed.

Alright so I'm stuck with some coding here, and I can't figure it out. I'm no expert in cURL, and I know hardly anything about, most of the cURL is taken a bit from here and there.

Anyway to the case. (host to connect to is as you probably can see in below code, rapidshare.com).

$rslink = "http://rapidshare.com/files/129518071/LimeWire_Pro_4.18.3_.rar";
$link = "http://rapidshare.com/files/129518071/LimeWire_Pro_4.18.3_.rar";
$prem = "user-pass"; // Not posting my real Premacc, just example
$fsize = "7490560"; // Bytes
$type = "free";

downloadfree($rslink,$fsize,$prem);

        function downloadfree($link,$filesize,$prem)
    {
    	ob_start();
    	// RS link
        $url = @parse_url($link);
        $filename = basename($link);
        if($link == "")
        {
            @header("HTTP/1.0 404 Not Found");
            echo "File Not Found";
            exit;
        }
        @header("Content-Type: application/octet-stream");
        @header("Content-Disposition: attachment; filename=".$filename);
        @header("Content-Length: ".$filesize);
        $vars = "dl.start=PREMIUM&uri={$url['path']}&directstart=1";
        $head = "Host: {$url['host']}\r\n";
        $head .= "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n";
        $head .= "Cookie: user={$prem}\r\n";
        $head .= "Content-Type: application/x-www-form-urlencoded\r\n";
        $head .= "Content-Length: ".strlen($vars)."\r\n";
        $head .= "Connection: close\r\n\r\n";
        $fp = @fsockopen($url['host'], 80, $errno, $errstr);
        	$curl = curl_init();
			curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
			curl_setopt($curl, CURLOPT_HEADER, 1);
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.0; nl; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14");
			curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
			curl_setopt($curl, CURLOPT_URL, "http://rapidshare.com");
	        $datacurl = curl_exec($curl);
	        if (curl_errno($curl)) {
	        	curl_close($curl);
				echo "Sorry, server could not connect to rapidshare.com";
	            exit;
	        }
        @stream_set_timeout($fp, 300);
        fputs($fp, "POST {$url['path']}  HTTP/1.1\r\n");
        fputs($fp, $head.$vars);
        fflush($fp);
        $buff = 256;
        while (!feof($fp))
        {
            $data = fgets($fp, $buff);
            if($headerdone)
            {
                print $data;;
            }
            if(!$headerdone)
            {
                $tmp .= $data;
                $d = explode("\r\n\r\n", $tmp);
                if($d[1])
                {
                    print $d[1];
                    $headerdone = true;
                    $buff = 2048;
                }
            }
            flush();
            ob_flush();
        }
        @fclose($fp);
        exit;
    }

PHP:

Alright, I have uploaded this function to my web server in order for you to test it.

http://wantpremium.net/download.php

The whole plan is to fetch a remote file and stream to user/client in other end through my server. For some reason it never goes that far, any idea?

Thank you for any help!