File Upload using Webdriver

Hi,

Can anybody tell me how to upload file using webdriver. in my application, i need to click on 'Add' button which will open window, where i need to give file tile, tile description and file path(i.e from clicking on browse button and selecting file). after selecting file, the button 'Confirm' will be enabled. i have given the following code for fileupload. but the button 'confirm' is not enabled. please suggest me how to do.

please see the below code which i have written :
driver.findElement(By.xpath("//img[@alt='add']")).click();
driver.findElement(By.id("fileTitle")).sendKeys("Title...");
driver.findElement(By.id("fileDescription")).sendKeys("Description...");
driver.findElement(By.id("file")).sendKeys("C:\\Program Files\\Microsoft Office Communicator\\eula.rtf");

driver.findElement(By.xpath("//img[@alt='submit']"));

Thanks &Regards,
Krishnaveni

Use the below code for file upload using webdriver :

WebDriver [size=9]driver;
EbayPageObject [size=9]ebayPageObject;[/size]

driver=new FirefoxDriver();
[size=9]
ebayPageObject = new EbayPageObject("http://10.239.53.68:8080/pp", driver);
File imagedefect4 = [size=9]new File("C:\\Program files\\Defect-Attachments\\Defect4.JPG");[size=9]
ebayPageObject.typeInputtext(By.id("file"), imagedefect4.getAbsolutePath());[size=9]
ebayPageObject.clickOnButton(By.xpath("//a[@href='javascript:uploadClientFile();']"));

[/size][/size][/size][/size][/size]

Thanks for this post Krishna. Can you please advise why you have used [size =9] or[/size] in your code. I am finding hard to understand this.