To install Office 2007 without Access you just make sure to select CUSTOM install when installing and use the drop down that looks like a computer hard drive icon and select NOT AVAILABLE when you get to the screen that has the list of items in there.
To uninstall, run the install disk or file again and when it asks if you want to uninstall, repair, or add/remove applications select add/remove applications and then go do the same as above.