List alerts

Hi All

Thank you in advance for any advice given.

I know a bit of SharePoint 2010 features like creating workflows, lists etc. I've done a bit of research but I've not found any related to my issue. We have a form created via info path which we fill out daily adding a new item to the list. What I'd like is an alert or workflow that is set off if a form has not been filled in on that day.

Just to make things slightly more difficult it'd be an alert that goes off with a work week.

From what I've found doing it via a workflow may not be possible. Maybe I need to use an alert. Could anyone advise if this kind of functionality would be available in SharPoint or point me in the right direction for getting something set?

Thanks again for any help.

Cheers

Joel