ya i guess some of the stuff is a little difficult to understand...heres a quick tutorial:
reflexive calculator:
magic box: put the magic here, or if u open a map it does this automatically.
offset box: put the offset here if you want to make a reflexive out of it
reflexive box: put the reflexive here if you want to know the offset it points to and then click the appropriate button
the hex float converter is very simelar and map info is self explanitory
direct inject is also pretty simple: open the map you want to inject from, the current map is automatically chosen as the one you are injecting into. select a tag to overwrite and a tag to inject, and the list at the bottom shows all of the dependencies of the tag being injected. press inject
tag controls:
update name location: allows tor renaming longer than the original name
correct metadata: fixes dependencies, reflexives, loneids
update item: this one is a bit more complex and depends on what is selected in the meta scanner.
Reflexive - middle box is translation, right box is chunk count
Dependency - left box is filename, middle box is leadclass (yes u can change it)
LoneID - left box is filename
meta scanner:
reflexive and pointer: location -- value = translation -- chunk count: duh, the chunk count
dependency: location -- leadclass -- filename
loneid: location -- tagclass -- filename
short and float: location -- value
*updating shorts, pointers, and floats is not working at this moment
hope that clears things up a bit
cool thx 
If you need help on a model editor (like where things are placed in the model) i am now an expert