The easiest way is to open the JPG in IrfanView, select the character you want to add, then copy and paste the selection into the appropriate Glyph in the FontCreator glyph overview.
See the tutorial on Scanning an Entire Alphabet
The easiest way is to open the JPG in IrfanView, select the character you want to add, then copy and paste the selection into the appropriate Glyph in the FontCreator glyph overview.
See the tutorial on Scanning an Entire Alphabet