For what it's worth, here are my steps and it works on my N95 with v20 firmware.
1. Downloaded v2.0.1 using PC from http://m.getgn.com/downloads/Nokia/geocacheNokia.zip
2. Unzipped and copied the .JAR via cable to memory card, then installed using file manager on phone.
3. Downloaded v.2.0.3 using PC from http://m.getgn.com/downloads/Nokia/geocacheNokia.zip
4. Unzipped and copied the .JAR via cable to memort card, then installed as upgrade using file manager.
-Gus
eek, does this mean there's a chance i wont get it back working??
kidding, i will do whatever if it means helping out such a great program. Give me til after this weekend as i might be cache hunting on Saturday.
Have a good weekend.
PS Splash screen defo says 2.0.3