Sorry that the power seat didn't work out. The wiring was spot-on, according to the wiring diagrams, so that seat may have had some issues.
For the door handles, since the 6L8Z-7822404-BAPTM paint-to-match part number for the 2001-2007 models now points to 8L8Z-7822404-BBPTM, they are definitely the same parts for all Escapes and Mariners, 2001-2009, and for Tributes 2008 and newer. 2001-2007 Tributes had different door handles.
The smaller paint-to-match bezels (the fixed part next to the handle) are also the same: the part with the hole for the lock cylinder was 6L8Z-78218A14-BAPTM, and it's now 8L8Z-78218A14-BBPTM. The bezel without the hole was 6L8Z-78218B08-BAPTM, now 8L8Z-78218B08-BBPTM.
Black textured parts are 8L8Z-7822404-AB for the door handle, 8L8Z-78218A14-AB for the bezel with the lock cylinder hole, and 8L8Z-78218B08-AB for the bezel without the hole.
The new parts are also less expensive.