Gallery 2.1.2 but should be suitable for most other versions too 
The Gallery install is quite easy to do
1. First step as always, before doing anything, take a backup of both your database and filesystem! Then turn your board offline.
2. Having downloaded the Gallery zip file, extract it to a folder on your desktop.

3. Looking inside the newly extracted folder and browse to the upload folder.

4. Start your FTP program and browse to the folder where your IPB is installed. You should see a screenshot similar to mine (note i have the Gallery window open too), when you have this, select all the folders in the Gallery upload folder and drag them to your forum folder to copy them there.

5. It can take a while to upload depending on your connection speed so be patient. You may get a request to overwrite an existing file or two, choose yes if this is the case. When done, you should have your ftp window open and see something like this (note the gallery_setup folder)

6. Before running the install, we need to CHMOD a few folders temporarily to 777 to allow the installer to run. You can do this from your FTP program. Make a note of their existing number (probably 755) so you can set them back afterwards.


7. The folders that need will changing to 777 are typically...
cache
cache/lang_cache (and any subfolders) example: "en"
cache/skin_cache
style_images (and any subfolders) example: /1
6. Visit your forum url and add gallery_setup to the end of the url. Example: www.example.com/forum/gallery_setup
7. If you have forgotten to CHMOD any folders, you will be reminded now. Assuming all is well, enter your admin username and password when prompted to by the installer.

8. Follow through the installer, its all automatic and very straightforward.
9. Using FTP, set the folders (above) back to what they were before (typically 755)
10. Using FTP, delete the gallery_setup folder.
11. You are done
You can access the Gallery settings from your Components tab in the ACP. Turn your board back online.
The Gallery install is quite easy to do
1. First step as always, before doing anything, take a backup of both your database and filesystem! Then turn your board offline.
2. Having downloaded the Gallery zip file, extract it to a folder on your desktop.

3. Looking inside the newly extracted folder and browse to the upload folder.

4. Start your FTP program and browse to the folder where your IPB is installed. You should see a screenshot similar to mine (note i have the Gallery window open too), when you have this, select all the folders in the Gallery upload folder and drag them to your forum folder to copy them there.

5. It can take a while to upload depending on your connection speed so be patient. You may get a request to overwrite an existing file or two, choose yes if this is the case. When done, you should have your ftp window open and see something like this (note the gallery_setup folder)

6. Before running the install, we need to CHMOD a few folders temporarily to 777 to allow the installer to run. You can do this from your FTP program. Make a note of their existing number (probably 755) so you can set them back afterwards.


7. The folders that need will changing to 777 are typically...
cache
cache/lang_cache (and any subfolders) example: "en"
cache/skin_cache
style_images (and any subfolders) example: /1
6. Visit your forum url and add gallery_setup to the end of the url. Example: www.example.com/forum/gallery_setup
7. If you have forgotten to CHMOD any folders, you will be reminded now. Assuming all is well, enter your admin username and password when prompted to by the installer.

8. Follow through the installer, its all automatic and very straightforward.
9. Using FTP, set the folders (above) back to what they were before (typically 755)
10. Using FTP, delete the gallery_setup folder.
11. You are done
You can access the Gallery settings from your Components tab in the ACP. Turn your board back online.













