We are using a hosted sharepoint 3.0 service (on apptix)

I would like to make use of the browser enabled function to permit
users to fill in forms without a copy of infopath localu, but get
errors when I publish the browser enabled form and infopath checks
the site.

Is it possible to use these browser based forms for our employees on
a server that isn't ours? I have contacted apptix tech support but
they seem to know less about this than I do. Asking me to provide
adresses of Micosoft pages to tell them what to switch on?

The error is reproduced below

Microsoft Office InfoPath
This form template is browser-compatible, but it cannot be browser-
enabled on the selected site. This may be caused by one of the
following
reasons:
- The server is not running InfoPath Forms Services.
- The necessary features are not available on the site collection.
- The policy setting on the server does not allow users to browser-
enable form templates.