Ah.. Sounds nice. o0
I have the problem, that i can't create new spells. :/ I created the "Holy" spell, and put it into the "Ultima" materia. I changed the text (it is shown in the materiatab), but i can't use it in the spellmenu. :/ The spell isn't shown in battle..
OK, let me address each of your issues in turn:
1) File not found:
What it's doing when it's compressing the kernel.bin. It needs to find these files. GZip.exe must be in the same directory as WallMarket. Then, all the Kernel files must be in the same directory as the kernel you're trying to write to. After that, it looks for the gz files that gzip should have made. That's all the file access that WM does. If you can "save for later" then it's a problem with it locating gzip. Can you post a picture of the directory where you're storing WM and the kernel?
2) No new attack:
How did you change the name? WM 0.9.X can't do that. How did you add the spell? That may be an issue with the magic list in kernel section 3 (battle and growth data) also which WM 0.9.X can't do.
1. I have no problems with Windows XP, but i have problems with Windows Server 2008. Sure, let me upload a picture. =) It is in german, since i am german.
http://666kb.com/i/b4d8kohkkfhwvbt9f.jpgWM Data contains the files (kernel etc). I tried it in the same folder too, i also tried batchfiles for GZip.. The problem must be missing DLLs..
2. I looked into the WM list (found the spellnumber and put it into the materia), and then i changed it in the Kernel2.bin with "Teioh Version 21". =)
Then i had the spell "Holy" in the materia "Ultima".. But sadly not in the battlemenu "spell".
Thanks for helping me, btw!