Image Resizing From A Class?

I found some code that resizes an uploaded image ( stream ) to a pre-determined size. Using this code, it works perfectly..

Code:
' make sure we have a file .
If FileUpload3.HasFile Then
Dim name As String = FileUpload3.PostedFile.FileName
Dim Justname As String = Path.GetFileName(name)
Dim length As Integer = FileUpload3.PostedFile.ContentLength

[Code] ....

What I'd like to do is move this code into a Class so I can call it from other pages, so I created a class and added this code...

Code:
Imports Microsoft.VisualBasic
Imports System.IO
Imports System
Imports System.Xml
Imports System.Xml.Xsl

[Code] ....

As you can see, I'm trying to pass in a stream and defined width, and I want it to pass back the image ( if the size if greater than what I expected.

I'm trying to call the class like so.

Code:
' make sure we have a file and that we have an ID to set it to.
If FileUpload3.HasFile Then
Dim name As String = FileUpload3.PostedFile.FileName
Dim Justname As String = Path.GetFileName(name)
Dim length As Integer = FileUpload3.PostedFile.ContentLength

[Code] ....

Don't worry about the cc.imgStr this is just the path to my class which is defined futher up.

The Error I get is "Value of type system.io.stream, cannot be converted to ' 1 dimensional array of byte' "...