Using rewrite to remove a subdirectory for 2 routes

I have an application that is accessed in the following way:

www.domain.co.uk/application/apples/index.aspx

or a second route

www.domain.co.uk/application/pears/login.aspx

(Note: the 2 routes have different default pages)

Can anyone give me some help to use URL rewrite to remove the "/application/" from the URL and all subsequent pages?

So a user can access the application using:

www.domain.co.uk/apples/index.aspx

or

www.domain.co.uk/pears/login.aspx

Also, if someone tries www.domain.co.uk/apples/ they will go to www.domain.co.uk/apples/index.aspx

and likewise www.domain.co.uk/pears/ they will go to www.domain.co.uk/pears/login.aspx

As a bonus, can I also remove the .aspx from the pagenames?

Thanks