Grove Temperature and Humidity Sensor shows no value/timeout error

Using Arduino Project Guidance
20

They said the sensor is fine, and someone said that the sketches I used above don't match for xbee carrier, but matches for simple board like Uno, Mega, etc. and he said that I should build simple web server which can read sensor data. I've used sketch from Wifi Bee Wiki :

/*
 * A simple sketch that uses WiServer to serve a web page
 */


#include <WiServer.h>

// Wireless configuration parameters ----------------------------------------
unsigned char local_ip[]    = {192,168,234,55};   // IP address of WiShield
unsigned char gateway_ip[]  = {192,168,234,1};   // router or gateway IP address
unsigned char subnet_mask[] = {255,255,255,0}; // subnet mask for the local network
char ssid[]                 = {"Connectify-me"};   // max 32 bytes
unsigned char security_type = 3;               // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2

// WPA/WPA2 passphrase
const prog_char security_passphrase[] PROGMEM = {"0987654321"};	// max 64 characters

// WEP 128-bit keys
prog_uchar wep_keys[] PROGMEM = { 
	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,	// Key 0
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	// Key 1
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	// Key 2
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00	// Key 3
};

// setup the wireless mode; infrastructure - connect to AP; adhoc - connect to another WiFi device
#define WIRELESS_MODE_INFRA	1
#define WIRELESS_MODE_ADHOC	2
unsigned char wireless_mode = WIRELESS_MODE_INFRA;
unsigned char sensorValue;
unsigned char ssid_len;
unsigned char security_passphrase_len;
// End of wireless configuration parameters ----------------------------------------


int counter;
// This is our page serving function that generates web pages
boolean sendMyPage(char* URL) {
  
    // Check if the requested URL matches "/"
    if (strcmp(URL, "/") == 0) {
        // Use WiServer's print and println functions to write out the page content
        WiServer.print("<html>");
        // Instruct the web broweser to refersh every 10 seconds 
        WiServer.print("<head><meta http-equiv=\"refresh\" content=\"10\"> </head>"); 
        WiServer.println("<H1>WifiBee Connected...<H1>");
        WiServer.print("<H2>Sensor Value = ");
        WiServer.print(sensorValue);  // connected to an exernal sensor. The RAW value is send to the client.
        WiServer.print("</H2>");
        WiServer.print("</html>");
        // URL was recognized
        return true;
    }
    // URL not found
    return false;
}


void setup() {
  // Initialize WiServer and have it use the sendMyPage function to serve pages
  WiServer.init(sendMyPage);
  
  // Enable Serial output and ask WiServer to generate log messages (optional)
  Serial.begin(57600);
  WiServer.enableVerboseMode(true);
}

void loop(){
  sensorValue = analogRead(5);  // connected to an exernal sensor via Grove interface in Grove - XBee Carrier .
  // Run WiServer
  WiServer.server_task();
 
  delay(10);
}

And the result is :

WifiBee Connected...
Sensor Value = xxx

but it is only RAW value a.k.a analog value, how to convert it to temp & humid data?