The toe is incorrectly set, ie the angle the wheels run compared to straight ahead.
Toe in = angle of wheel pointing inward, if you had a two long straight edges and flat held it against opposite wheels, they'd meet in front of the car somewhere, eventually, depending on how much toe in you have set.
Toe out = angle of wheel pointing outwards, again, two straight edges and they'd move out away from each other.
If you have excessive wear in the inside edge of the tyres, the toe out is to much, wera on the outside, to little.
The wear with look "feathered" on the tread.
FWD cars generally run toe in at the rear and toe out at the front.
Have it aligned before you drive off on your new tyres, get them to fit the tyres then align it, ask them to check if there's any play in the ball joints and/or bushes, this could contribute to the problem, they'll be able to get a bar in there and pull on the parts better than you can with it on a jack.
You'll probably, at best slow the uneven wear down, as it doesn't take these cars long for the tracking to go off.
A good tyre is the Falken Fk452, and try here for tyres. UK Tyres Online: Cheap Car tyres | Blackcircles.com