Running application on the internet

[Mickwish]

Hello TECHIMO brain trust

I need to look at a way to run a specific application over the internet, inexpensively of course. The issue is we have a professional association that wants to run an email discussion list using specific email discussion software (ListServe from L-soft)

The association currently has a hosted website but no capacity within their current hosting contract to run a specific application like this. I am told that dedication servers run to the cost of AUD$1000/month, which is way too expensive and not very cost effective for this single specific type of application for a 1300 member association.

Are there other options for running ths type of application on a shared server? None of the Australian web hosting companies I have enquired at so far seem very interested at letting me run a specific application on a shared server. I must not be looking in the right places! Anybody have any ideas what I should be looking for?

Thanks
Mick