Is it possible to secure a web service with Forms Authentication?

We are looking to secure a bunch of ASP.Net 2.0 .asmx web services. The which will host the web services is already forms authenticated.
Is it possible to secure the web services using forms authentication?
What are the pros and cons and other possible ways to achieve this. We certainly don’t want to pass a username/pwd or token in each web method call.

Accessing controls in the edititemtemplate of a listview

I am working with the listview control. By default I am showing the itemtemplate with an edit button. When the edit button is pressed the listview switches to the edititemtemplate. I need to populate one of the controls in the edititemtemplate based on the item being edited – I’ve tried accessing the control (via FindControl) in the ItemEditing event (and pretty much every other event as well), however the controls just don’t seem to exist. I can access controls in the itemtemplate ok, but not the edititemtemplate.

How do you manage asp.net SQL membership roles/users in production?

How do you setup an asp.net sql membership role/membership provider on a production machine? I’m trying to setup BlogEngine.NET and all the documentation says to use the ASP.NET Website Administration tool from Visual Studio but that isn’t available on a production machine. Am I the first BlogEngine user to use it on a non-development box?

asp:DropDownList Error: ‘DropDownList1’ has a SelectedValue which is invalid because it does not exist in the list of items

I have a asp.net 2.0 web site with numerous asp:DropDownList controls.
The DropDownList control contains the standard info city, state, county etc… info.
In addition to the standard codes the site also has custom codes that the users can configure themselves.
For example a animal dropdown may contain the values Dog, Cat, Fish, ect…