Can't find the path

I've re installed Soloris 8 on an Ultra 1. When i try to run a program i get an error which tells me the program can't find the path.

For some reason i have to type ./program name to get it to start. I didn't have to type the ./ previous to the install. Lastly the path isn't shown at the prompt any more. What needs to be changed to get it back to normal?

[380 byte] By [zzbyasb] at [2007-11-25 22:54:28]