conversion logic:
-----------------------------------
Latitude:

original format: DDMM.MMMM

Convert it to : DD + (MM.MMMM/60)
IF Hemisphere is "N" value is Positive
IF Hemisphere is "S" value is Negative

-----------------------------------
Longitude:

original format: DDDMM.MMMM

Convert it to : DDD + (MM.MMMM/60)
IF Hemisphere is "W" value is Negative
IF Hemisphere is "E" value is Positive
--------------------------------------

After the conversion you should be able to map the coordinates in Mappoint. Thanks