I find there can sometime be a data lag in adwords. Having said that, have you refreshed your page? Have you got the right date set in the top right hand corner? (all mistakes I have made in the past!) If its just a small test, I’d set the budget and time period (think you can do this under campaign settings) and let it run, checking in every so often depending on volume / length of the test / spare time. Careful you don’t constantly tweak your campaign as you won’t know what changes are making a difference – can sometimes take several days for changes to have their full impact. As a very general rule of thumb – optimise, leave it to run, review, re-optimise. Also, you might want to look at the impact of having your ads above the fold on page one – likely to have a significant effect on volume, but costs will also be higher – up to you to make that call!
Good luck – hope it works out for you!