How to REpublish Custom Task Forms (InfoPath) to SharePoint 2010 State Machine Workflows

I am new to SharePoint. Sorry if answer to my question is obvious.

1. I've create Custom Task Form in InfoPath and publish it (File/Publish/Network Location [Form Template Path and filename='MYPROJECT/Forms/ApprovalForm.xsn'; Form template name='ApprovalForm'], in the next window I've cleared Public URL according to the articlehttp://www.codeproject.com/Articles/195348/SharePoint-2010-State-Machine-Workflows-with-Custo).
2. After it I've added module Forms, and added ApprovalForm.xsn from the existing items.

3. My xml files: Elements.xml

<Elements xmlns="http://schemas.microsoft.com/sharepoint/"><Workflow
       Name="Order New Server"
       Description="My SharePoint Workflow"
       Id="482cbc86-b717-4981-a49a-3cf4c89e9399"
       CodeBesideClass="Myproj.OrderNewServer.OrderNewServer"
       CodeBesideAssembly="$assemblyname$" 
       TaskListContentTypeId="0x01080100C9C9515DE4E24001905074F980F93160"><Categories/><AssociationData><Data></Data></AssociationData><MetaData><AssociationCategories>List</AssociationCategories>      <Task2_FormURN>urn:schemas-microsoft-com:office:infopath:ApprovalForm:-myXSD-2012-03-09T14-11-55</Task2_FormURN><StatusPageUrl>_layouts/WrkStat.aspx</StatusPageUrl></MetaData></Workflow></Elements>

Feature.Template.xml:

<?xml version="1.0" encoding="utf-8" ?><Feature xmlns="http://schemas.microsoft.com/sharepoint/" ReceiverAssembly="Microsoft.Office.Workflow.Feature, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" Receiverlass="Microsoft.Office.Workflow.Feature.WorkflowFeatureReceiver"><Properties><Property Key="GloballyAvailable" Value="true" /><Property Key="RegisterForms" Value="Forms\*.xsn"/></Properties></Feature>

My form work fine, but when I make changes and republish it, it doesn't update (I see old form). What I tryed:

1. IISReset
2. Clear all cookies and cache in IE
3. Retract solution, restart VS2010, reboot computer.
4. Change assembly number, guid.

I have no ideas, what can I try for republish my form with changes.

Thank you in advance for any suggestions.

PS: sorry for my writing. English is not my native language.

PPS: when I save new Form to new location and add it to the project, it works.