i will post my page by page wallpapers and icons for the SB but i use many icons and UI interfaces from other people, so will not upload without their knowledge, though i can tell you where to go.
To start with you must set up the whitoken theme layout. i will post a link to a good (if long winded) guide, but to speed up the icon placement (create iBlank icons section in the guide) you can install "Iconoclasm" and "whitoken theme layout" for iconoclasm from Cydia.
Whitoken setup guide
http://www.quickpwn.com/2009/08/whitoken.html/1
***remember to mimic my own SB icon layout instead of the guides***
***In part 5 create an extra category called "utilities"
If you download the whitoken theme to help set up it will only included enough springboard shortcuts for 4 SB pages, but i will show you how to create your own...
Duplicate a springboard shortcut found in /application/_shortcut.xx and open up its info.plist file /application/_shortcut.xx/info.plist
the "5.0" is a unique identifier that needs to be changed and could be anything, i've listed mine in a similar manner to whitoken, e.g. 5.0, 5.1, 5.2 for page 5 shortcuts.
The number 0 indicates the 1st springboard up to the number 4 which is the fifth and must be changed accordingly to create a shorcut of your choice.
For each duplication you will need to save the shortcut as a new name and re-spring for them to become visible.
i use 3 other main themes from cydia
Tea Time-Lapse
Background image that changes slowly over time. activate in winterboard
GDJB
(status bar icons and massive stock app UI change) - download from cydia and delete everything in its folder but "UIImages" and "bundles"...if you like the sounds keep them aswell.
This theme dramatically changes the stock apps UI, and if you dont like it this theme is not integral to the system. activate in winterboard
Illumine - i have included all icons on the SB in my theme (including a layout to create your own), but they are modelled on the illumine icons and so have that theme running under mine so my Filled away icons keep the same style. activate in winterboard
***NOTE: the large images on the SB's are part of the background of each page. I use Mquickdo and large apps muck up the appswitcher so each icon for that app is disguised as part of the image.
Because of this i have included a psd. and individual alternate .png pages minus the large image for you to re-name and replace.***
HEaF.theme.zip - 2.11MB
unzip and upload the theme into your /library/themes/ folder