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EDIT 2

I've made a dirty fix that will solve the issue.

In the transmitter code I've added:

uint16_t sensorValue = currentTemp*100;
//do the bit shift to put uint16 into uint8 array
data[1] = sensorValue >> 8;
data[2] = sensorValue;
// print and increment the counter
radio.write(data, sizeof(uint16_t)+1);

This will send the (temperature value)*100

On the receiver end, I just convert the uint16_t to a float element and divide it by 100.

uint16_t sensorValue = data[2] | data[1] << 8;
float temp = (float) sensorValue/100;
Serial.print("T: "); 
Serial.println(temp); 

Dirty, but effective!

Many thanks guys for the help, it really pointed me and my lousy programming skills to the right direction.

#include <RF24.h>
#include <RF24_config.h>
#include <SPI.h>
#include <OneWire.h>
#include <DallasTemperature.h>

OneWire oneWire(4);

DallasTemperature sensors(&oneWire);

// ce,csn pins
RF24 radio(8,7);

unsigned char data[3] = {
  0};
unsigned long count=0;
void setup(void)
{
  sensors.begin();  
  Serial.begin(57600);
  Serial.println("**************V1 Send Sensor Data***********");
  radio.begin();
  radio.setPALevel(RF24_PA_LOW);
  radio.setChannel(0x4c);

  // open pipe for writing
  radio.openWritingPipe(0xF0F0F0F0E1LL);

  radio.enableDynamicPayloads();
  radio.setAutoAck(true);
  radio.powerUp();
  Serial.println("...Sending");
}

void loop(void)
{
  sensors.requestTemperatures();
  float currentTemp;
  currentTemp = sensors.getTempCByIndex(0);
  
  //assign 'T' to represent a Temperature reading
  data[0] = 'T';
  data[1] = currentTemp;
  count++;
  // print and increment the counter
  radio.write(data, sizeof(float)+1);
  Serial.print("Temperature sent:  ");
  Serial.println(currentTemp);
  // pause a second
  delay(500);
}

What am I missing?

#include <RF24.h>
#include <RF24_config.h>
#include <SPI.h>
#include <OneWire.h>
#include <DallasTemperature.h>

OneWire oneWire(4);

DallasTemperature sensors(&oneWire);

// ce,csn pins
RF24 radio(8,7);

// init data buffer to hold a sensor type byte and one uint16_t sensor data
unsigned char data[3] = {
  0};
unsigned long count=0;
void setup(void)
{
  sensors.begin();  
  Serial.begin(57600);
  Serial.println("**************V1 Send Sensor Data***********");
  radio.begin();
  radio.setPALevel(RF24_PA_LOW);
  radio.setChannel(0x4c);

  // open pipe for writing
  radio.openWritingPipe(0xF0F0F0F0E1LL);

  radio.enableDynamicPayloads();
  radio.setAutoAck(true);
  radio.powerUp();
  Serial.println("...Sending");
}

void loop(void)
{
  
  sensors.requestTemperatures();
  float currentTemp;
  currentTemp = sensors.getTempCByIndex(0);
  
  
  //assign 'T' to represent a Temperature reading
  data[0] = 'T';
 
  data[1] = currentTemp;
  
  count++;
  
  sprintf(data, "T %5.2f\n", currentTemp);  // build command in data[]
  radio.txMode(strlen(data));               // set # bytes to xmit
  radio.write(data);                        // send bytes

  // print and increment the counter
  Serial.print("Temperature sent:  ");
  Serial.println(currentTemp);
  // pause a second
  delay(500);
}

What am I missing?

EDIT:

I've modified the code to include the answer from JRobert (updated code above), but it comes back the following error:

nrf24SendSensorDataV1_ino.cpp: In function 'void loop()':
nrf24SendSensorDataV1_ino:56: error: invalid conversion from 'unsigned char*' to 'char*'
nrf24SendSensorDataV1_ino:56: error: initializing argument 1 of 'int sprintf(char*, const char*, ...)'
nrf24SendSensorDataV1_ino:57: error: 'class RF24' has no member named 'txMode'
nrf24SendSensorDataV1_ino:57: error: invalid conversion from 'unsigned char*' to 'const char*'
nrf24SendSensorDataV1_ino:57: error: initializing argument 1 of 'size_t strlen(const char*)'
nrf24SendSensorDataV1_ino:58: error: no matching function for call to 'RF24::write(unsigned char [3])'
C:\Users\Zuh\Downloads\arduino-1.0.1\libraries\RF24L01/RF24.h:281: note: candidates are: bool RF24::write(const void*, uint8_t)

Any thoughts?