Freelander 1 rear wheels are adjustable as well as the fronts. They're different to most vehicles which have none adjustable rears - like pram wheels on the rear of tratters.
Both rears adjust to the spec needed, but are also adjusted together to create the rear thrust angle. If one or both rears are knocked out then the freelander can pull to one side or just feel wrong, regardless what yer adjust ont front wheels. Yer can't correct rears by oftsetting the fronts to compensate.
When pulling to one side yer need to have a look at all 4 wheels. Damaged or bent bits in suspension etc. If lifting it to have a look, be carefull.
Yer need to do the checks peeps have said above and report back. Alloy wheels feeling warm after a short trip (compared to opposite wheel) would indicate the brake is rubbing on one side, causing the heat and pulling to one side. Sticking caliper or pins can cause this.
When yer ses pulling to one side... Does it actually pull to one side or does it drive straight, but with the steering wheel turned oft centre a bit, like at 11 o'clock?
Is there a hamster playing in one of yer wheels? Yer never know...