I stumbled across this software today and liked it's potential so I downloaded it.

PHP is not my strong point, so I'm looking for help correcting the following errors in the install script:

PHP gettext() support [is not present]
Localization of Zenphoto currently requires native PHP gettext() support

PHP setlocale() failed
Locale functionality is not implemented on your platform or the specified locale does not exist. Language translation may not work.

PHP mbstring package [is not present]
Strings generated internally by PHP may not display correctly. (e.g. dates)

Any suggestions?

I should mention I'm running IIS and PHP 5.25.

Well, those 3 are just warnings (perhaps we should make that more clear if it was misunderstood) - so the effects will be, you will not be able to use localization or translation support, and some extended-character-set strings may not display properly.

As long as your gallery is in English, it shouldn't be a problem. Proceed with the installation anyway.

I proceeded with install and the following screen came up (I've run the setup script multiple times and come up with the same errors). zpbc is the prefix I used for the tables.

About to create tables...
Table creation failure: BLOB/TEXT column 'title' can't have a default value
Table creation failure: BLOB/TEXT column 'title' can't have a default value
Table creation failure: Table 'zenphoto.zp_bc_images' doesn't exist
Zenphoto Error
MySQL Query ( SELECT * FROM zp_bc_albums ) failed. Error: Table 'zenphoto.zp_bc_albums' doesn't exist
It looks like your zenphoto tables haven't been created. You may need to run the setup script.

I was able to get around the script errors by installing version 1.2 (2219 from Aug 16th) and then upgrading to 1.2.1 (2656).

I had the same issue with a clean install of 1.2.1 except I am running Apache 2.2. Installing 1.2 first then upgrading to 1.2.1 worked great.