Ford fiesta style gearbox problems 2008

[Rob48]

Can anyone.help me I have just had a 2nd hand gear box and new cluch fitted all the gears work Lovely now apart from frist gear I just seem to the it over to frist it keeps going into 3rd all the time 

[Sprinter]

Sounds like the gear linkage needs adjusting?

[Westward]

There's a selector gate at the bottom of the gear stick which allows you to select the gears. The gate has a pair of cables which connect it to the gearbox. The gate has a tiny nylon bush (non replaceable) which can fail causing gear selection problems or it could be the cables are out of adjustment.