i use this in a numbers pool script I have. I changed the variable names to make it a little more clear.
Dim strToVert 'Text to turn vertical
Dim iCnt 'Count the letters
Dim strVert 'Resulting vertical text
Dim i ' The counter
strToVert = "Vertical"
iCnt = Len(strToVert)
strVert = ""
for i = 1 to iCnt
strVert = strVert & " " & Mid(strToVert,i,1) & " "
if i < iCnt then strVert = strVert & "<br />"
next
Response.Write strVert
<edit> Removed some unneccesary breaks<