i need to allow an admin the ability to manually proccess an order without shipping charges, the older version used to offer it, when i set up a freeshipping module, customers can selct it, i dont want that. can you point me in the right direction?

getting this error when i try to add a new offer, or change an old one, this db has been upgraded.

<H1>Server Error in '/' Application.
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</H1>
<H2>Compilation Error </H2>[color=#ffffcc>

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<TD>[1]
<FONT face=Verdana>Version Information:[/color] Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433 [/1]&lt;!--
[HttpCompileException]: d:\hosting\member\thextensor1\site1\BVModules\Offers\Free Shipping\Edit.ascx.vb(123): error BC30561: 'Globalization' is ambiguous, imported from the namespaces or types 'System.Web, System'.
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath)
at System.Web.UI.TemplateControl.LoadControl(String virtualPath)
at BVSoftware.Bvc5.Core.Content.ModuleController.LoadSingleControl(String blockName, Page& p) in c:\source\CommerceMain\WebApp\source\BVSoftware.Bvc5.Core\Content\ModuleController.vb:line 409
at BVSoftware.Bvc5.Core.Content.ModuleController.LoadOfferEditor(String taskName, Page p) in c:\source\CommerceMain\WebApp\source\BVSoftware.Bvc5.Core\Content\ModuleController.vb:line 141
at BVAdmin_Marketing_OffersEdit.LoadOfferEditor(Offer offer, Boolean force)
at BVAdmin_Marketing_OffersEdit.Page_Load(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.bvadmin_marketing_offersedit_aspx.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
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This error page might contain sensitive information because ASP.NET is configured to show verbose error messages using &lt;customErrors mode="Off"/&gt;. Consider using &lt;customErrors mode="On"/&gt; or &lt;customErrors mode="RemoteOnly"/&gt; in production environments.--&gt;

now it just adds system. to the error line.
'Globalization' is ambiguous, imported from the namespaces or types 'System.Web, System'.

so your answer above worked great for free shipping, now how would i set it up for a shipping price to be entered at the time the admin makes the order?
in other words, my product is flat rate shipping, but sometimes gets sold in quantity, and that flat rate does not apply.
i tryed to setup anohter offer for "shipping", but it does not work as i expected it to.