There is an easier way, download the update system rpm from here:
http://www.dungog.net/sme/files/devinfo-mitel-update-system-0.0.1-12.noarch.rpmusing the wget command and then after you have downloaded it, in the same directory type this:
rpm -Uvh devinfo-mitel-update-system*.rpm
and then a panel will be added to your server manager and hey presto you can easily install rpm's from there

Its just the inital download/getting it to your sme that is your problem, I use rpm manager, as it allows for easy uploading to the sme under the directory /opt/adminitration/rpm-manager. The only problem is I cannot remember where I downloaded it from and I have searched the forum for the file name and even googled it to no avail, try looking for this filename:
dmc-mitel-rpmmanager-0.0.1-1.noarch.rpm
after you find that and get it to your sme and install it it gives you a page at:
http://yourdomain.com/rpm-manager that lets you upload easily from there, but it still does not get over the fact that you have to get it there, I think I just burnt it onto a cd and copied it across like that, I just cannt remember, good luck though

OH OH OH I DO remember!!
from a windows machine goto the network neighbourhood and find your sme box name, in my case it was e-smith (highly original

) and then just copy file to there, now ssh to your sme and you'll find those files under the directory:
/home/e-smith/files/primary
from the command prompt type "mc" without the quotes and that will give you a old stile windows explorer type interface and the simply click on the .. and then home, then e-smith, etc etc etc,
now you will have to change the chmod of those files as copying it across that way stuffs up the ownership, so then hit F10 to quit and then type "chmod 777 *.rpm" without quotes and then type rpm -Uvh name-of-rpm*.rpm
if you do that for the update system rpm then after that installs it'll be the last time you have to do it that way if you wish, but anyway email me off list if you have any more probs, I'll be only glad to help you out

Cyrus Bharda