Basic Date Picker Forums

Just upgraded to Windows 7 and the basicdatepicker doesn't work so got the latest version of the dll (1.4.1.41500) and replaced the older version in the BIN dir of my website.
I am still getting errors though:
- public property textboxreadonly() as boolean is obsolete
- public property customerdateformat() as boolean is obsolete
- public property datepickerdisplaytype() as basicframe.webcontrols.datepickerdisplaytype is obsolete

Can anyone help please?

just giving some more info as getting quite desperate as can't run the code:
Using .NET Framework 3.5 and Visual Studio 2008.
When I run the website through the code, I get these errors BUT if I run the site through the localhost, then it runs fine.
Any ideas?

Is there something I need to do with the aspnet_client directory? I have noticed a folder in here called 'basicframe_webcontrols_basicdatepicker' which contains another folder called '1_2_2411'.
Do I need to add '1_4_0'? If so, how do I reference it? Do I still need the older folder (1_2_2411) as there are some users who are still working on 32 bit