Below is the resize image code, Let me know if you find anything

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using CMS.CMSHelper;
using CMS.FileManager;
using CMS.GlobalHelper;
using CMS.TreeEngine;


public partial class CMSTemplates_ASIASPX_ResizeImage : Page
{
private int width;
private int height;
private bool? backgroundImage;


public int Width
{
get
{
if (width == 0 && !string.IsNullOrEmpty(Request["w"]))
width = Convert.ToInt32(Request["w"]);
return width;
}
set { width = value; }
}

public int Height
{
get
{
if (height == 0 && !string.IsNullOrEmpty(Request["h"]))
height = Convert.ToInt32(Request["h"]);
return height;
}
set { height = value; }
}

public bool? BackgroundImage
{
get
{
if (!string.IsNullOrEmpty(Request["b"]))
backgroundImage = Request["b"] == "true";
else
backgroundImage = false;
return backgroundImage;

}
}

protected void Page_Load(object sender, EventArgs e)
{
try
{
// string imagePath = Request["imagepath"];
int nodeId = Int32.Parse(Request["nodeID"]);
TreeProvider tree = new TreeProvider();

TreeNode node = tree.SelectSingleNode(nodeId);//tree.SelectSingleNode(guid,CMSContext.PreferredCultureCode, CMSContext.CurrentSiteName);

if (node != null)
{
AttachmentManager am = new AttachmentManager(tree.Connection);
Guid existingGuid = ValidationHelper.GetGuid(node.GetValue("FileAttachment"), Guid.Empty);
if (existingGuid == Guid.Empty)
{
existingGuid = ValidationHelper.GetGuid(node.GetValue("DetailPhoto"), Guid.Empty);
}
if (existingGuid != Guid.Empty)
{
AttachmentInfo ai = am.GetAttachmentInfo(existingGuid, CMSContext.CurrentSiteName);
write(ai.AttachmentBinary, ai.AttachmentMimeType);
}


}
}
catch (Exception ex)
{
string path = string.Format("~/App_Themes/{0}/img/noDetail.png", "Fuji");
if (File.Exists(Server.MapPath(path)))
Response.Redirect(Server.MapPath(path));
else
string.Format("~/App_Themes/{0}/img/noDetail.png", "Fuji");
}
}

private void write(byte[] image, string mimeType)
{
ResizeStream(ref image);
Response.ContentType = mimeType;
Response.BinaryWrite(image);
}

private string currentTheme()
{
TreeNode homeNode = TreeHelper.SelectSingleNode("/Home", true, "ASI.HomePage");
string sitetheme = homeNode.GetValue("SiteThemeName").ToString().Trim() ?? "Fuji";
return sitetheme;
}

private void ResizeStream(ref byte[] image)
{
using (WebImage orig = new WebImage(Image.FromStream(new MemoryStream(image))))
{
Color bgColor = Color.FromArgb(0, Color.White);


if (Height == 0)
{
float dheight = ((orig.Height / (float)orig.Width) * Width);
Height = (int)dheight;
}

SizeF imageSize = new SizeF(orig.Width, orig.Height);
SizeF resizeSize = new SizeF(Width, Height);
if (BackgroundImage.Value)
resizeSize = new SizeF(Width - 5, Height - 5);

SizeF newSize = WebImage.CalcNewSize(imageSize, resizeSize);

using (WebImage newImage = new WebImage(bgColor, Width, Height))
{
int nodeId = Int32.Parse(Request["nodeID"]);



if (BackgroundImage.Value)
{
string path = string.Format("~/App_Themes/{0}/img/BG-thumb.png", currentTheme());
if (File.Exists(Server.MapPath(ResolveUrl(path))))
newImage.AddImage(Server.MapPath(ResolveUrl(path)), 0, 0);
orig.ResizeExact((int)newSize.Width, (int)newSize.Height, Color.White);
newImage.AddImage(orig.Image, (int)((Width - (int)newSize.Width) / 2), (int)((Height - (int)newSize.Height) / 2));
}
else
{
newImage.AddImage(orig.Image, 0, 0, (int)newSize.Width, (int)newSize.Height);
}
//IE 6.0 hack
if (Request.Browser.Browser == "IE" && Convert.ToDouble(Request.Browser.Version) < 7.0)
newImage.ConvertToIndexedColor(bgColor, new OctreePalletizer(255, 8));
image = newImage.ToBytes(ImageFormat.Png);//orig.ToBytes(ImageFormat.Gif);
}

}
}

private bool isTrans(Color srcPixel)
{
if (srcPixel.A < 128)
return true;
return false;
}


}