Some questions on custom themes

I was browsing through custom PSP themes on sites like consolespot, and I don't like many of the new themes, especially the layout.

My favorite all time theme was the theme Black Rhizura for 3.52M33 (flash theme)

I was wondering if there is any way to convert this theme so that is works on 4.01M33 and maybe 5 if I upgrade.
The theme is no very complicated and doesn't have that many themes.

Could someone tell me hoe to convert it (if possible) or do it for me if they know how (I have no clue)

Thanks

I have tried the .ptf version but I don't like it, I miss the wave, battery icon etc.