Hello Sophie,
First, its probably best not to put your email address on this or any other web site which is similar, its like broadcasting it to the world, you could end up with loads of junk emails.
I couldn't find a manual for you but did find their website:-
http://www.fellowes.com/fellowes/site/support/support_contact.aspx?loc=top
With this contact number if you're in the USA
For Keyboards and Mice
1-888-335-8324
Contact
Customer SupportAlso, this review on a shopping website, with luck it should help you out.:-
"They come as a kit that needs to be installed under your desk with the
supplied hardward. You will need a #2 Phillips screwdriver and a 3/32
Inch drill bit and drill (for the screw pilot holes under the desk) to
install.
Installation is very easy and straightforward using the
supplied paper template. Be careful to allow for space on the side
(right side if right handed) so you can push the drawer under the desk
with the keyboard shelf extended. You will need a second person to hold
the drawer in place as you put in (at least) two of the screws to hold
the unit up under the desk while you install the rest of the screws (8
total).
The keyboard drawer is robust enough for normal use. I
used to support trading rooms on Wall Street and it's not robust enough
for one of those gorillas to whack on. For normal mortals, it should be
fine.
The keyboard drawer is fairly attractive and very functional.
The
keyboard drawer fits most mid sized keyboards and includes an
adjustable clamp on the inner edge to keep the keyboard from sliding
forward. This clamp isn't really necessary as the keyboards do a pretty
good job of staying put on the ridged drawer surface.
The clamp
is held in place with plastic ears, which you can bend slightly to
remove the clamp entirely if you have a large keyboard. On one of our
drawers I have a Logitech Wave. With it's own plam rest, it's too big
for the drawer with the clamp - so I removed the clamp and it works
great. With the drawer's plam rest and the keyboard's, I have a nice
wide place to rest my wrists.
The mouse shelf is just a touch
smaller than a typical mouse pad, but is more than adequately sized.
You do need to leave a little gap on the inner edge of the mousepad if
you use one for clearance with the slider. This allows you to retract
the drawer".