If you were used to any of these items in Photoshop CS3, you will not find them in CS4 of CS5. Just go out and download these Plug-ins and you will be back to normal, well at least as close as possible.
The following plug-ins and associated files are included in this package:
* Photoshop CS5 Optional plugins ReadMe
* Picture Package (ContactSheetII)
* ExtractPlus (Windows-only)
* PatternMaker
* PhotomergeUI
* Web Photo Gallery (WebContactSheetII) plus presets
* Script for Layer Comps to Web Photo Gallery
* Texture presets for Texturizer
* TWAIN
Download them here.