How to Install PHP5 and phpmyadmin joomla(arm) duo v2

Hi,
I recently bought a ReadyNAS Duo v2 (arm) and wanted to set-up my own php webserver on it.

The ReadyNAS has the official firmware RAIDiator v5.3.7

I tried to install PHP5 and phpmyadmin as per the instructions above, but I received the following error message:

root@ReadyNAS:/# apt-get install nano libapache2-mod-php5 php5 php5-mysql php5-gd phpmyadmin

Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 libapache2-mod-php5 : Depends: libonig2 (>= 5.2.0) but it is not going to be installed
                       Depends: libqdbm14 (>= 1.8.74) but it is not going to be installed
                       Depends: php5-common (= 5.3.3-7+squeeze14) but it is not going to be installed
                       Recommends: php5-cli but it is not going to be installed
 libncurses5-dev : Depends: libc-dev
 libncursesw5-dev : Depends: libc-dev
 php5 : Depends: php5-common (>= 5.3.3-7+squeeze14) but it is not going to be installed
 php5-gd : Depends: libgd2-xpm (>= 2.0.36~rc1~dfsg) but it is not going to be installed
           Depends: libt1-5 (>= 5.1.0) but it is not going to be installed
           Depends: libx11-6 but it is not going to be installed
           Depends: libxpm4 but it is not going to be installed
           Depends: php5-common (= 5.3.3-7+squeeze14) but it is not going to be installed
 php5-mysql : Depends: php5-common (= 5.3.3-7+squeeze14) but it is not going to be installed
 phpmyadmin : Depends: php5-mcrypt but it is not going to be installed
              Depends: dbconfig-common but it is not going to be installed
              Depends: libjs-mootools (>= 1.2.4.0~debian1-1) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Should I proceed with the 'apt-get -f', or could this cause issues?

thanks
kullyrai