this is the right folder/forum thing to post in, dont worry about that.
& i'm really not sure of any videos out there on the web to go by considering i dont have speakers & have issues w/ moving things on my computer, but i didnt use PSE 4 before i got PS. Almost every tutorial written for Photoshop CS and below work in elements. the only thing you really cant do is the liquify filter, which i personally dont use much, and you cant use actions.
as for your brush issue....
are all your brushes in the preset folder for brushes? for example mine would be C:\Program Files\Adobe\Adobe Photoshop CS\Presets\Brushes
Just go to program files>Adobe>& then elements>& find the preset brushes folder, move all the brushes to there, close elements, re-open it & you should be able to access them by the little drop down arrow that says like...basic brushes, media brushes, & all that.
i hoped that helped & wasn't too confusing. although i just got
PS about a month ago im used to using it now & cant remember exactly where everything is in elements.