I can and have logged in to Taro from multiple 
ISPs with no trouble.  So you dont have to be at 
the same computer.  However, they're always going 
to send your confirmation emails to the email you 
registered.  
So.. (assuming you use a pop server which 98% of 
mail servers are these days)
get yourself a hotmail account.  Hotmail has an 
option to check other pop servers and get your 
email off them, and read it in your hotmail 
inbox.  Great for accessing any email from 
anywhere. (I do this all the time)  And there is 
an option to leave the mail on the pop server, 
meaning that you can read it in your hotmail box, 
and even reply, (set your reply to address to 
your pop box and you can even guarantee that 
replies go to your home email and not hotmail in 
case you're back home by the time they reply), 
and if its still on the server, you can retrieve 
it again through your home(or in your case work) 
computer to have copies of everything, since it 
wasnt taken off the server.
If you need more detailed instructions on how to 
go about working this, feel free to email me.
-aethel