QTP does not have a built-in method or property to retrieve if the browser has a scrollable right scrollbar. QTP can query the Internet Explorer Document Object Model (DOM) to access the .ScrollTopproperty of the object containing the scrollbar. 
Here are couple options I think you can try.
Use the MakeObjVisible method to scroll down
Browser(''browser'').Page(''page'').Image(''c'').MakeObjVisible  
Use the send key 
Browser(''browser'').Page(''page'').highlight  
CreateObject(''WScript.Shell'').SendKeys ''{END}''  
or
set WshShell = CreateObject(''WScript.Shell'')  
WshShell.AppActivate ''Your Title in IE - Microsoft Internet Explorer''  
WshShell.SendKeys ''{PGDN}'' 'press the Page Down key  
Set WshShell = nothing  
To scroll the object into view, try the Highlight method.
Example:
Browser(''Browser'').Page(''Page'').WebCheckBox(''WebCheckBox'').Highlight  
If the Highlight method does not scroll the object into view, you can also try using the tab key to set focus to the object in question.
Example:
' In a .Net application, tab through the objects until the one you want is in focus.  
SwfWindow(...).Activate  
While SwfWindow(...).SwfEdit(...).GetROProperty(''focused'') = False  
SwfWindow(...).Type micTab   
Wend  
If you are working with a Web application inInternet Explorer, you can also use the scrollIntoView DOM method. (This method is not available to Netscape or Firefox.)
Example:
Browser(''Browser'').Page(''Page'').WebCheckBox(''WebCheckBox'').Object.scrollIntoView