Easiest way would be as such:
Instead of writing it to text file, You'd just put it into a variable, then read through it and rip what information you want. e.g MyWarranty = urlget(url)
strServiceTag = "ABCDEF"
url = "http://supportapj.dell.com/support/topics/topic.aspx/ap/shared/support/my_systems_info/en/details?c=in&cs=inbsd1&l=en&s=bsd&ServiceTag=" & strServiceTag & "&~tab=1"
Set writyObject = CreateObject("Scripting.FileSystemObject")
Set WrityStuff = writyObject.OpenTextFile("MyWarrantyStuff.txt", 8, True)
Set Http = CreateObject("MSXML2.ServerXMLHTTP.6.0")
URLGet = Http.responseText
Can't test much past what I did above at work, as I can't get direct access through VTMG on this box.
Hope above gives a bit of help?