somthing like

mysql < photos.sql

should do the trick

mysql mydatabasesname < photos.sql

Well hmm, Yes I did, LETS say i have a database called test !! and a mysql script that looks like such

[root@Kat root]# cat pont.sql
#DROP TABLE `test`
#CREATE TABLE test(nick VARCHAR(30), about VARCHAR(30));

INSERT INTO test () VALUES ("Paul.Esson" , "Trying to be nice" );
INSERT INTO test () VALUES ("kubota" , "Idiot");
SELECT * FROM test

because I do, Now I wish to run this script

[root@Kat root]# mysql test < pont.sql
nick    about
Paul.Esson      Trying to be nice
kubota  Idiot
Paul.Esson      Trying to be nice
kubota  Idiot
Paul.Esson      Trying to be nice
kubota  Idiot
[root@Kat root]#

It works for me

You might try reading the man pages ?

[root@Kat root]# man mysql | tail -n 20 | head -n 5
EXAMPLE
       You can also read a backup dump file back into MySQL with:

       mysql  database < backup-file.sql

So basicly what you need to do is open up some kinda console
start > run > cmd

in windows

then you need to make certain that mysql is in your path, prolly easyest to change to the mySQL dir, then you type

mysql theDatabaseName < C:\path\to\the\file\photowhatever.sql

and pray it should hopfully work without a hitch.

Do you have phpMyAdmin installed? If not, then INSTALL IT. It's the best way to work with MySQL for dummies (even experts use it, very easy to use.) I'm sure you already have it installed on your webhost, though. Then just import the file in phpMyAdmin.