reading mail from my HTC Touch HD

How do I set up so i can read my mail from my mobile phone? i did it once back in the day i had a Palm Vx many moons ago but not sure now. i still want to download it to my outlook once i get home but i'd like to see mail coming in to my zen account.

What sort of e-mail account is it? Is it cPanel, or your @zen.co.uk address?

zen.co.uk address.

i want it to auto connect via 3G but can only get it using wireless

Thats probably an issue with the settings for your mobile phone provider then - if it works over wi-fi then you must have filled in the e-mail settings correctly.

I'm assuming of course that you can browse webpages and so on from your phone...

On my phone (voda sony-erricson x1) no automatically connecting internet programs would work until I changed the option at:
Start -> Settings -> Connections -> Connections -> Advance -> Select Networks and changed them both from My ISP to WEB.

No idea if thats any help, or if you have the same problem.
Probably best to ask your mobile phone provider for help, or try a forum like modaco.com otherwise. (The Mobile broadband section of this forum seems somewhat empty)