I really like Sygic - it runs well on Win CE 6.0 devices unlike Tomtom. However there were (until a moment ago) a couple of features which annoyed me. (1) The irritating safety message each time I switched on and (2) I couldn't access UK postcodes. The solution is simple.
Edit the settings.ini file in the subfolder WindowsCE (inside the Drive folder). Save the original version as oldsettings.ini before you mess about, obviously!

change showSafetyMsg from always to never
and change usePostals from false to true

ie
usePostals=true
showSafetyMsg=never

while you're in there, you can delete the words mapmyindia if they appear alongside slash =
(maybe you could insert your own text here if you want - haven't tried it!)

As yet, I cannot reliably get the full 7 digit UK postcodes to display. The system seems to accept 4 digits, then offers you a scroll option which is tricky to use
(unless there's a knack I haven't acquired yet. I'll update if I do.)

This also appears to enable the regional codes for other European countries.

Hope this is useful to someone.

in your mlm file in the map folder check that it has the line
exPostals=yes
this should get you the full uk post code