Okay back to the questions...I´ve got a multi-party and I have two clerics...Don´t ask why!!!
The best of them is a fighter/cleric with G.Mastery in warhammer and dualling...He id wielding death and torment to all in his vicinity!!!
The bad priest is my priest of Helm, lady with ok stats but it really bugs me that she´s got ONE point in warhammer and flail...so the question comes here after the remarks on my problem!

Is it only the cleric kits that gain a holy symbol at 25th lvl or does an ordinary cleric do the same...´cause then I´ll just erase her and make her a fighter/cleric like my other man.

On a sidenote I find the list over sorcerer spells to be the best thing ever...I´d never tried Melfs Minute Meteors if I hadn´t read this thread in here and absolutely LOVE those meteors...But I bet that the kobolds dislikes them oh so much

BAM BOM BIM get down my hands are raining meteors again

Every cleric gets a holy symbol. The one you'll get depends on your alignement. The kits give you other boons like some spell that the other kits or non-kit clerics don't get.

Even dual-class clerics (e.g. Anomen) receive holy symbols at the appropriate level.