So im pretty new to this world of PHP, im usually on the graphics end of doing things or just plain out fixing computers, but recently i was added the task of learning PHP quickly and using it to edit the companies website and such things... here is my huge problem?! (im learning php as fast as i can also)

First question is... would i be able to download all the contents of my site into dreamweaver CS5 and edit it there?! even if it has PHP? seems it would be easier for me?! they use godaddy.com

second question is this..kind of a big question, i hope i can explain it well...
They need to have it when employees sign in it connects them to the right training videos for that position.. so example, company*ABC* signs in creates an online enrollment, and we hire them as HR manager, we need her account in training to have the right videos linked to her training module in the database... is it possible to link the right videos when she clicks on who she works for and the positions...

as i said i know big question, and a lot has been thrown on me, so im trying to figure out the best way to do this as they want to keep this in house and not use an out source training company....

any help would be greatly welcomed! thanks in advance

weston