I didnt find the online tests too bad except for the short time limits on the maths one made me panic a bit which is the wrong thing to do! Just practise rearranging simple equations and try not to worry if you run out of time on one but keep focused on the questions. I did mine a few weeks ago but havent heard anything about them. I did my stage 1 tests this morning and think it went ok. They didnt mention the marks about the online tests and I dont think that they would bother letting you go all that way if you had already failed!