Installation problem

[Ian Dixon <zippller optonline net>]

I'm yet again in need of help.. I want to add my USB Zip250 drive and
install the software which I've downloaded from iomega's website. Once
downloaded I opened a terminal and su to root and issued the following
command, which came from the iomega website on how to install;

[root localhost zippller]# tar xzvf "iwclcontainer-lnx-x86-10.tgz"

and got back -

tar (child): iwclcontainer-lnx-x86-10.tgz: Cannot open: No such file or
directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
[root localhost zippller]#

I have the downloaded file in my

file:/home/zippller/dlsoftware/iomega zip250 

So why do I get the reply cannot open, no such file or directory?
Obviously I'm new to linux and struggling a little with these commands.
I'm finding linux a little puzzling to say the least. 

Thank you for any help.
Ian