Zimbra Install Woes!

[FrustratedWindowsUser]

Well I thought I would take a look at what Zimbra offers. I come from a MS Exchange background and have worked with the product since version 5.0. I think I can safely say at this juncture I will not be giving up my day job!

Anyway on to my problem - I have now been trying to install Zimbra for over 2 days and being a non Linux person you can probably appreciate how frustrating this is. I have deployed Ubuntu 10.04 LTS on HyperV, have all the networking setup and configured correctly, I can ping other hosts etc etc. I have all the hostnames set correctly. I have followed several step by step guides and everything works fine until I actually try to install Zimbra. When I kick off the install I get the following:

Checking for prerequisites...
NPTL...FOUND
sudo...MISSING
libidn...MISSING
curl...MISSING
fetchmail...MISSING
gmp...MISSING
/usr/lib/libstdc++.so.5...MISSING

###ERROR###

One or more prerequisite packages are missing.
Please install them before running this installer.

I have installed all of those pre-requisites several times over. When I run the apt-get install it states that the module is already the latest version and installed. I have seen various potential fixes like using CHMOD 777 on the Zimbra directory but nothing works. I am stuck and this is driving me insane.
I am running the 64bit version of Ubuntu and I'm trying to install the latest Zimbra package.

Can anyone please assist or point me in the right direction?

Many thanks

FWU

[phoenix]

What is the exact name of the file you downloaded? Was this a minimal install or a 'normal' install?

[FrustratedWindowsUser]

Oh! - school boy error! on checking I think I must of picked up an older version of Zimbra meant for Ubuntu 6! I guess I must of zoned out last night. I am now downloading the correct version and will post back if this doesn't fix my issue.

Many thanks Bill, appreciate you pointing me in the right direction!