Readme:
Once unzipped, place the entire East Indiaman folder in your art/units folder. Then copy and paste the EIndiamanLarge.pcx and EIndiamanSmall.pcx into your art/civilopedia/icons/units folder. Then open up the EIndiaman32.pcx with an image editor, back-up your units_32.pcx and open it with an image editing program. Paste the image into a square at the end of the other icons, be sure to line it up correctly. Finally, backup your PediaIcons text and Civilopedia text. Then copy and paste the appropriate text below into its respective places (feel free to change the Civilopedia description, this is only my version). Finally, open up your scenario in the civ3-editor and add the unit (if you need help with this part, look around in the tutorials forum, I made this quick tutorial because some people organize their units differently).

Enjoy! 

Note: As usual there are two versions of the civilopedia text, the first one is for my mod and the second is the standard one.

PediaIcons

#start units
art\civilopedia\icons\units\EIndiamanLarge.pcx
art\civilopedia\icons\units\EIndiamanSmall.pcx

# Unit animations
#ANIMNAME_PRTO_EIndiaman
East Indiaman


Civilopedia (Age of Sail: 1st Generation)

#PRTO_East Indiaman
^
^
^ An [East Indiaman] is a large ocean-going vessel. They serve very well as both transports and warships at relatively low costs. 
^
^A coastal city needs both $LINK<iron=GOOD_Iron> and $LINK<saltpeter=GOOD_Saltpeter> in its
$LINK<Strategic Resource=GCON_ResourcesS> box to build an [East Indiaman].
^
#DESC_PRTO_East Indiaman
^
^With Corvettes every navy had found an excellent 'interceptor' vessel, but launching invasions still required construction of fleets of transports and even more fleets of various escort vessels. All of these ships of war had an immense draw on resources in order to maintain them, even when only a small fraction of their abilities were being used. An alternative, much more flexible warship was needed for navies who had tighter budgets. The result was the creation of the East Indiaman.
^
^The East Indiaman was designed so that it could be maintained by a very small crew. In order to do this and keep it sea-worthy, speed and maneuverability had to be sacrificed. To compensate for this loss, plenty of space for cannons and weapons was put into the design, so that the more valuable cargos could be transported with safety. Enough cannons were put onto the East Indiaman to make it a formidable warship, likely able to at least survive an encounter with a Frigate. This gave it a dual purpose, with the right balance of weapons space and cargo space an East Indiaman could be turned into a perfect invasion vessel, at relatively low cost compared to the fleets required before.   



Civilopedia (Standard)

#PRTO_East Indiaman
^
^
^ An [East Indiaman] is a large ocean-going transport. They are designed to carry massive amounts of cargo at very low costs, however when fully mannned and armed they can be formidable warships. 
^
^A coastal city needs both $LINK<iron=GOOD_Iron> and $LINK<saltpeter=GOOD_Saltpeter> in its
$LINK<Strategic Resource=GCON_ResourcesS> box to build an [East Indiaman].
^
#DESC_PRTO_East Indiaman
^
^ In 1600, the British East India Company was created to take control of trade in India. This company was given the monopoly over all trade in the East Indies. By 1757 the company was not only the primary commercial force in East India, but also the main military and governemnt force. The British East India Company was practically an independent country of its own, and its flag was arguably what inspired the American Stars and Stripes. They founded major cities such as Hong Kong and Singapore, and was reponsible for holding the captured Napolean.
^
^ As a result of its country-like status, the British East India Company had its own navy. Being founded as a trading organization, the British East India Company placed maintaining constant, quick and safe trade routes as its primary concern (most other concerns were tied in with this anyways). The British East India Company made its own ships, known as the East Indiaman. These large, square-rigged vessels had massive cargo holds, hulls well adapted to ocean voyages and enough cannon ports that when fully armed they could be effectively classified as warships. An East Indiaman was also designed to have a very small minimal amount of crew, in order to further reduce transport and loss expenses when these vessels were being used simply for transporting cargo. The design makes these vessels slow to travel and turn, but their cannon capacity can easily compensate for this.     