Thank you all for the help.

I started again from scratch and did some experiments moving the RS and E lines arround and all worked fine.
Now i have to sucessfully move the data bus to Portb.

I did not have the time yet to do so, but i will keep this thread updated.

In other hand, i've just realised that i will not able to finish this project because the 16F628 does not have the A/D converter i need to measure temp. - seen the analog input and assumed that it also had A/D :s ( Thanks Mister_E ).

Have to go and buy some 16F88s.

.