Yet another dumb blonde question!


I've just had my cambelt changed on my 1982 1.6d high top. when I got home I noticed a spot of oil on the road, had a quick look underneath and there's oil over the bottom corner of the engine. I've just received my new JK 1.6d manual and it mentions (just after the cam belt replacement section) about a camshaft oil seal - could this be at fault??
Also when driving her back from MOT (which she passed) on the journey home which is only 3 miles the oil temp gauge moved right over to the right, the light flashed, then the needle moved back to where it normally sits. Does this mean anything, should I panic?? I assumed the flashing light was an oil temp warning light, am I correct??
We're off to Bus stopover tomorrow (150 mile round trip) Will Val make it??
Please help as I'm rather worried