ok guys,as promised i will show you what i did to get link to the past installed by duping the system into thinking it was DKJ..
basically,what i tried first

used wad tool 004 version)
- tried using the DKJ title.tick in the LTTP wad,but obviously that didnt work as they have two differant title names
- then i compared the LTTP .tick with the DKJ .tick and noticed that they are pretty similar,with some variation of code etc..
- Then i compared DKJ and LTTP .tmd and these also very similar..
- Then i modified the LTTP .tmd to use the same hex name as the DKJ (in this case it was JADP (or 4A 41 44 50 in hex (line 000001e0) to FABP (46 41 42 50) and removed some garbish above that line (just make the two tmd around that line similar..)
-then created a wad with this modified .tmd and it worked sweet.
- problem i see with this is it would only enable
what i wanna try now is use the DKJ .tick,modify this to reflect the apps used for a random game,use this random games ID ( like the FABP above), insert this into the DKJ .tick and try that..if that works it should enable multiple versions of the same game (gonna try this with LTTP first..)