I see.. Just go to the manufacturer's page ..select teh model and download all drivers for this model and windows 7 ..usually if they are not there you can use the vista drivers but select them in the properties to run in compatibility with visa if they make issues..
About the programs ..it probably was a human error ..cause you do not payed attention on the selections made when you installed it ..You should specified to keep files and programs if possible ..and if you did and it made this ..it means it was no other way ..
Anyway ..there are alternatives for the programs in windows 7 ..and the drivers need to be installed manually ..
The other programs too ..just download them and install ..cause the usual ones like players and so ..are freeware ..
if you use HP ..like it is said here ...the link will get you to the support site ..
http://www8.hp.com/us/en/support-drivers.html