D7 ThirdParty components to D2007

Hello,

I would like to move a huge application (>160,000 lines) from D7 to D2007 
Win32, but, I use several D7 components (with source code) for which the 
writer does not exist anymore, like TurboPower, Being not a components 
writer myself, I look for a cook book to learn how to migrate these 
components to D2007.

Some components are available on SourceForge for D2007 like AsyncPro but not 
all of them

any references will be greatly appreciate
thank you in advance
serge