[Click Android Development] Coburn64:
Sorry, but I think I'm drunk after having 1/4 of all those beers. Whoa, I'm trippin' out. I see rainbow sheep. [/joke]

Anyway, here's a installation guide:

-- START --

Installing AzusaROM onto your HTC Tattoo

Requirements

- Mainfram3's custom boot image (flashed already)

- Mainfram3's custom recovery (flashed already)

- Bravery

- Latest version of AzusaROM (CoburnROM infused)

BEFORE YOU INSTALL, PLEASE MAKE SURE YOU ARE CONFIDENT THAT YOU CAN PERFORM THESE INSTRUCTIONS!

How to install

0. If you haven't flashed Mainfram3's Boot and Recovery for the tattoo, please do so, or you're not going to get far.

1. Download the latest version of AzusaROM from the first post. At time of writing, it was version Release Candiate 1b.

2. Copy the file to your MicroSD Card, either via Mac Finder, Windows Explorer or whatever thing you use on Linux. You can also use 'adb push name-of-azusarom.zip /sdcard/update.zip'.

3. If you didn't do the adb push method in the above step, rename the copied file to update.zip.

4. Get all your precious data off the Tattoo. AzusaROM will BOMB all your documents, settings, apps, phone numbers, reminders etc during the flashing process.

4a. Connect the Tattoo to your computer. If HTC Sync (blasted thing!) pops up, kill it.

5. Enter recovery (hold down HOME while booting the Tattoo).

6. At the ANDROID with the alternating droid background screen, press and release HOME + BACK + ENDCALL. You'll need to be quick, else you'll reboot the tattoo, and you'll have to wait for it to fully boot again and then redo these steps!

6a. Windows/Mac/Linux should detect a new device (HTC Bootloader or HTC Dream ADB Interface), and running "adb shell" should say "/ #" from busybox. If you get this, you are good to go. If you don't have adb handy, get it from the android SDK for Win/Mac/Linux.

7. You should get a menu with apply update from sdcard:update.zip option. Select it, but DO NOT enter it yet!!

Halt Now!

MASSIVE WARNING:

I bricked my HTC Tattoo due to a dodgy updater-script.

I almost fell to pieces, thinking I killed my precious phone.

BUT No! It lives on. If AzusaROM bricks your phone (can't go past boot screen), DO NOT PANIC!!

Just download the offical RUU, plug in your USB, reboot the Tattoo while holding VOL DOWN and flash away with the RUU updater.

Bingo, your Tattoo is a unbrick!

You can continue if you have a iron soul (aka one that doesn't panic often). :)

8. Press the Clicker (Trackpad ball thingy aka circle thing under buttons at bottom of device) to start flashing.

ANOTHER MASSIVE WARNING:

This is the point of no return.

AzusaROM will be flashed to your Tattoo. Any data once there will be gone.

You have been warned. If you have life-critical files on your phone, you've just said that "Yes, I am going to erase my phone".

9. Read the info on screen. You can also do a "adb shell" and do "cat /cache/recovery/log" during the flashing process.

10. When complete, DO NOT REBOOT INTO NORMAL MODE!! Instead, do a "adb reboot recovery" on your computer as this will reboot the phone again to recovery. Wait a bit and then issue "adb shell". Do the following:

NOTE: Do not enter the part in square brackets.

[/ #] mount -o rw,remount /dev/block/mtdblock5 /data

(If this fails, simply do mount /data )

[/ #] cd /data/local/bin

[/data/local/bin #] chmod +x ./post-install.sh

[/data/local/bin #] ./post-install.sh

This will install my busybox and also chmod su for root access.

11. enter 'sync' on the adb shell, wait until finished, and now, from the recovery menu select reboot (you may have to access it again via the key combo - if it reboots due to you pressing the keys at the wrong time, this is okay).

12. Congratuations! You have installed AzusaROM, complete with root and busybox! :D

If you have any questions, please ask for help! Don't wonder off on your own, or you'll get a brick.

Remember, if your Tattoo doesn't boot, just download the RUU and flash it from the HBOOT menu via the RUU Windows updater.

-- END --

I hope this helps.