Insect and Spider Identification: Help me ID insects from raised veggie beds, 4 by vkeeney

vkeeney wrote:
the third 'bug' was very hard to get a photo of because it kept moving so fast. It finally died so I can get a better picture - see if these help you tell what it is.

the second and forth - are they the same thing, just in differnt stages? Do you think they are any connection to the cucumber beetles?

Do you know of anything I can put into the soil to get rid of the grubs or anything that eats the plant roots that won't damage the plants?

the fifth image - thank you for confirming my thoughts on the extention service ID - the person who did the ID was a master gardener - I am seriously thinking of contacting the state extenstion about the misidentification! As to those worms, why is it that I find countless worms like this - all the same size - never larger or smaller? If they are juvenile worms, wouldnt there be any larger ones when they grow up? I had the same thing last year - same exact size!