Since you're using Windows Vista, you have IE 7. Apparently, you do not have the Menu Bar showing on IE; that's why you don't see Help. To display the Menu Bar, right click on a empty area of the toolbar area at the top of IE and select/check Menu Bar.
So, you've deleted cookies and no change, right? Let's try this. Download, install, and run CCleaner. Go to
http://www.ccleaner.com/download, select Other Builds at bottom of that page, and then select Slim version. Once installed, launch CCleaner and click the Cleaner button at left. Select the Windows tab and check all boxes under Internet Explorer, Windows Explorer, and System; for now, I think you can leave the items under Advanced unchecked. Click the Analyze button at bottom; when that's finished, click the Run Cleaner button at bottom.
Next, click the Registry button in the left pane of the CCleaner window; click Scan for Issues button at bottom. When the scan is finished, click the Fix selected issues button at bottom, right side. When prompted to backup the registry before executing any fixes, do the backup, then have CCleaner fix all items.
