ok time to summerize before i ask to make sure so far im doing everything right. Please if im doing something wrong or missing something TELL ME!

to hack brawl one must:
1.install Homebrew Menu [Not done yet/plan to do the tradiational way and use brawl to install it with stage creator]
2. Put Gecko in SD:/apps (i also put it in the root of SD)
3. Insert brawl's Gci code into SD:/codes
4. Created a root of SD:/private/wii/app/RSBE/pf/fighter (also added stage,item,module and sound)
5.downloaded a ton of stuff and save them in a folder on PC
6. created a folder for every single fighter and put skins for them in there.
7. eat cookies and wait to get a copy of brawl.
now when i get the disc again, i will have to insert sd card into wii,load up brawl and go to stage creator where the installer make homebrew appear. then once complete i go to homebrew channel and find gecko. once there the magic happens?
if im correct so far then id link to actuall get on with my questions.
i noticed some ppl have custom images for their characters. by random guess i think CSI means "Character select image". how exactly do i do that
i noticed that people have imported videos as their brawls opening as thp's. im not sure what that is but my question is can i make my import a video i have and just converted to thp somehow? or do i need that confusing brawl box that i dont understand quite yet?
rels are used to make me put stages whereever i want right?
and my final question is the items.im doing a rain check and seeing if got this right. so far all i did was created a folder called item in pf and sticked all my items in there,but some items are coming with Common 5's and 3's. what do i do with those?