Workaround Customized NewForm.aspx SharePoint List

apply all this

Microsoft: Error message when you try to attach a file in a custom form on the Web site in Windows SharePoint Services 3.0: “This form was customized not working with attachement"


Blog: Custom listview with attachments


sharepoint designer hotfix
http://support.microsoft.com/kb/960311

not sure if Office 2007 SP2 must contain that hotfix.


Setting SharePoint Form Fields Using Query String Variables Without Using JavaScript
Understanding SharePoint’s “ddwrt:DataBind” syntax
Customise SharePoint List Forms
MSDN: List Forms

ListTemplates Elements (features schemas)
Tools for CAML intellisense:

• CAML.NET IntelliSense

jPoint