DocMan install issues.

I am quite new to Linux. I have made the plunge to going windows-less. I
formatted and installed Ubuntu.

I am using this machine mainly as a webhosting server and a machine to
collaborate documents with others across the country. I need to have a
document checkout system. I found that Docman will be suitable, but as far
as installation instructions go, I am quite clueless. Can anyone walk me
through it? or at least decipher the instructions? I have been wrestling
with this for quite some time.

Thanks in advance to anyone that can offer up some information.

Jeff