First off all , double post, tripple posts whatever are not allowed in this section...
To your first question, how to set the upgrade item of a certain item:
1. Open Navicat
2. Open the player db
3. Look for refine_proto and open it
4. In there you can either define a new upgrade or change an already existing one..
5. To create a new upgrad method > add a new line by clicking on the " + " sign.
6. In the first row where it says "ID" write down a number that does not yet exist in the refine proto, say for example : 700
7. On the right next to the ID, there is something called " vnum0 " , in there write down the vnum of the item you want to use for the upgrade (for example white pearl: 27992 )
8. Next to vnum0 there is something called " count0 " , in there you define the number of the item that you have in vnum0 that you need when you upgrade... (for example: 3 / now you need 3 of white pearls to upgrade...)
9. Now when you are done, save it.
10. Close refine_proto and open item_proto
11.Look for the item that you want to define with the upgrade scheme that you have just created in the refine_proto... lets say for example : blacksteelplate ( vnum 11290 )..
when you have found it, scroll right until you see " refine_set " in the same line where blacksteelplate is...
12.In there write down the ID that you choose in refine_proto (in my example 700) and save it.
13. Restart the server and taadaa ...there you have it, your own upgrade scheme

(from blacksteelplate +0 to +1 you need 3 white pearls now, however this is just an example)
(14. You can also choose more that 1 item for the upgrad, next to count0 will be vnum1 which is the secound item you need, and next to count1 is vnum2 ,which is the third item and so on

)
(You can use this method define the upgrade for any item, doesnt have to be blacksteelplate)
To upgrade an item to another, for example blacksteelplate to lets say king armor (lvl 50):
1. Open item_proto again and look for blacksteelplate +9 (27999)
2. When you have found it, scroll right until you see something called "refine_vnum" , in there you type in the vnum of the item you want to get when you upgrad blacksteelplate, for example king armor (vnum 11971), type it in save it.
3. restart server...and woala there you have it