Try this:
1. Open the email
2. Go File ->save as...
3. From the Save in: drop down list chose the network drive and project folder you want to save the message in.
4. Name the file. By default it will save as the subject.
5. Save as type: choose .msg if you want to save the email as an email message (this will require whoever wants to open it to have access to Outlook). If you want to save it as a text file or an Outlook template you can do that too. Saving it as a text file allows even users who don't have access to Outlook to open it. If the email has is in htlm format you also have the option of saving it as an .htm file. The .txt and .htm files still show your email headers, etc. when they are opened.
To open the email the user would simply go to the relative projects folder and double click on the file, be it .txt, .oft, msg. or .htm.
If you no longer want the email in your inbox you can delete if from there. For the first couple I would check that you can open them OK from the network drive and that the results are what you are looking for.
HTH.
Cheers.